feat(holiday-system): implement comprehensive holiday management features

- Added holiday types and organization holidays management with CRUD operations. - Introduced country holidays import functionality using the date-holidays npm package. - Created database migrations for holiday types and organization holidays tables. - Developed a holiday calendar component for visual representation and management of holidays. - Enhanced API routes for holiday-related operations and integrated them into the admin center. - Updated frontend localization for holiday management features. - Implemented scripts for populating holidays in the database for 200+ countries.
2025-07-16 07:59:27 +05:30
parent 737f7cada2
commit 5214368354
16 changed files with 2181 additions and 560 deletions
--- a/worklenz-backend/database/migrations/20250130000000-add-holiday-calendar.sql
+++ b/worklenz-backend/database/migrations/20250130000000-add-holiday-calendar.sql
@@ -0,0 +1,85 @@
+-- Create holiday types table
+CREATE TABLE IF NOT EXISTS holiday_types (
+    id          UUID                     DEFAULT uuid_generate_v4() NOT NULL,
+    name        TEXT                                                NOT NULL,
+    description TEXT,
+    color_code  WL_HEX_COLOR                                        NOT NULL,
+    created_at  TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP  NOT NULL,
+    updated_at  TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP  NOT NULL
+);
+
+ALTER TABLE holiday_types
+    ADD CONSTRAINT holiday_types_pk
+        PRIMARY KEY (id);
+
+-- Insert default holiday types
+INSERT INTO holiday_types (name, description, color_code) VALUES
+    ('Public Holiday', 'Official public holidays', '#f37070'),
+    ('Company Holiday', 'Company-specific holidays', '#70a6f3'),
+    ('Personal Holiday', 'Personal or optional holidays', '#75c997'),
+    ('Religious Holiday', 'Religious observances', '#fbc84c')
+ON CONFLICT DO NOTHING;
+
+-- Create organization holidays table
+CREATE TABLE IF NOT EXISTS organization_holidays (
+    id              UUID                     DEFAULT uuid_generate_v4() NOT NULL,
+    organization_id UUID                                                NOT NULL,
+    holiday_type_id UUID                                                NOT NULL,
+    name            TEXT                                                NOT NULL,
+    description     TEXT,
+    date            DATE                                                NOT NULL,
+    is_recurring    BOOLEAN                  DEFAULT FALSE              NOT NULL,
+    created_at      TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP  NOT NULL,
+    updated_at      TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP  NOT NULL
+);
+
+ALTER TABLE organization_holidays
+    ADD CONSTRAINT organization_holidays_pk
+        PRIMARY KEY (id);
+
+ALTER TABLE organization_holidays
+    ADD CONSTRAINT organization_holidays_organization_id_fk
+        FOREIGN KEY (organization_id) REFERENCES organizations
+            ON DELETE CASCADE;
+
+ALTER TABLE organization_holidays
+    ADD CONSTRAINT organization_holidays_holiday_type_id_fk
+        FOREIGN KEY (holiday_type_id) REFERENCES holiday_types
+            ON DELETE RESTRICT;
+
+-- Add unique constraint to prevent duplicate holidays on the same date for an organization
+ALTER TABLE organization_holidays
+    ADD CONSTRAINT organization_holidays_organization_date_unique
+        UNIQUE (organization_id, date);
+
+-- Create country holidays table for predefined holidays
+CREATE TABLE IF NOT EXISTS country_holidays (
+    id          UUID                     DEFAULT uuid_generate_v4() NOT NULL,
+    country_code CHAR(2)                                            NOT NULL,
+    name        TEXT                                                NOT NULL,
+    description TEXT,
+    date        DATE                                                NOT NULL,
+    is_recurring BOOLEAN                 DEFAULT TRUE               NOT NULL,
+    created_at  TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP  NOT NULL,
+    updated_at  TIMESTAMP WITH TIME ZONE DEFAULT CURRENT_TIMESTAMP  NOT NULL
+);
+
+ALTER TABLE country_holidays
+    ADD CONSTRAINT country_holidays_pk
+        PRIMARY KEY (id);
+
+ALTER TABLE country_holidays
+    ADD CONSTRAINT country_holidays_country_code_fk
+        FOREIGN KEY (country_code) REFERENCES countries(code)
+            ON DELETE CASCADE;
+
+-- Add unique constraint to prevent duplicate holidays for the same country, name, and date
+ALTER TABLE country_holidays
+    ADD CONSTRAINT country_holidays_country_name_date_unique
+        UNIQUE (country_code, name, date);
+
+-- Create indexes for better performance
+CREATE INDEX IF NOT EXISTS idx_organization_holidays_organization_id ON organization_holidays(organization_id);
+CREATE INDEX IF NOT EXISTS idx_organization_holidays_date ON organization_holidays(date);
+CREATE INDEX IF NOT EXISTS idx_country_holidays_country_code ON country_holidays(country_code);
+CREATE INDEX IF NOT EXISTS idx_country_holidays_date ON country_holidays(date); 
--- a/worklenz-backend/docs/HOLIDAY_SYSTEM.md
+++ b/worklenz-backend/docs/HOLIDAY_SYSTEM.md
@@ -0,0 +1,352 @@
+# 🌍 Holiday Calendar System
+
+The Worklenz Holiday Calendar System provides comprehensive holiday management for organizations operating globally.
+
+## 📋 Features
+
+- **200+ Countries Supported** - Comprehensive holiday data for countries worldwide
+- **Multiple Holiday Types** - Public, Company, Personal, and Religious holidays
+- **Import Country Holidays** - Bulk import official holidays from any supported country
+- **Manual Holiday Management** - Add, edit, and delete custom holidays
+- **Recurring Holidays** - Support for annual recurring holidays
+- **Visual Calendar** - Interactive calendar with color-coded holiday display
+- **Dark/Light Mode** - Full theme support
+
+## 🚀 Quick Start
+
+### 1. Database Setup
+
+Run the migration to create the holiday tables:
+
+```bash
+# Run the migration
+psql -d your_database -f database/migrations/20250130000000-add-holiday-calendar.sql
+```
+
+### 2. Populate Country Holidays
+
+Use the npm package to populate holidays for 200+ countries:
+
+```bash
+# Run the holiday population script
+./scripts/run-holiday-population.sh
+```
+
+This will populate holidays for years 2020-2030 for all supported countries.
+
+### 3. Access the Holiday Calendar
+
+Navigate to **Admin Center → Overview** to access the holiday calendar.
+
+## 🌐 Supported Countries
+
+The system includes **200+ countries** across all continents:
+
+### North America
+- United States 🇺🇸
+- Canada 🇨🇦
+- Mexico 🇲🇽
+
+### Europe
+- United Kingdom 🇬🇧
+- Germany 🇩🇪
+- France 🇫🇷
+- Italy 🇮🇹
+- Spain 🇪🇸
+- Netherlands 🇳🇱
+- Belgium 🇧🇪
+- Switzerland 🇨🇭
+- Austria 🇦🇹
+- Sweden 🇸🇪
+- Norway 🇳🇴
+- Denmark 🇩🇰
+- Finland 🇫🇮
+- Poland 🇵🇱
+- Czech Republic 🇨🇿
+- Hungary 🇭🇺
+- Romania 🇷🇴
+- Bulgaria 🇧🇬
+- Croatia 🇭🇷
+- Slovenia 🇸🇮
+- Slovakia 🇸🇰
+- Lithuania 🇱🇹
+- Latvia 🇱🇻
+- Estonia 🇪🇪
+- Ireland 🇮🇪
+- Portugal 🇵🇹
+- Greece 🇬🇷
+- Cyprus 🇨🇾
+- Malta 🇲🇹
+- Luxembourg 🇱🇺
+- Iceland 🇮🇸
+
+### Asia
+- China 🇨🇳
+- Japan 🇯🇵
+- South Korea 🇰🇷
+- India 🇮🇳
+- Pakistan 🇵🇰
+- Bangladesh 🇧🇩
+- Sri Lanka 🇱🇰
+- Nepal 🇳🇵
+- Thailand 🇹🇭
+- Vietnam 🇻🇳
+- Malaysia 🇲🇾
+- Singapore 🇸🇬
+- Indonesia 🇮🇩
+- Philippines 🇵🇭
+- Myanmar 🇲🇲
+- Cambodia 🇰🇭
+- Laos 🇱🇦
+- Brunei 🇧🇳
+- Timor-Leste 🇹🇱
+- Mongolia 🇲🇳
+- Kazakhstan 🇰🇿
+- Uzbekistan 🇺🇿
+- Kyrgyzstan 🇰🇬
+- Tajikistan 🇹🇯
+- Turkmenistan 🇹🇲
+- Afghanistan 🇦🇫
+- Iran 🇮🇷
+- Iraq 🇮🇶
+- Saudi Arabia 🇸🇦
+- UAE 🇦🇪
+- Qatar 🇶🇦
+- Kuwait 🇰🇼
+- Bahrain 🇧🇭
+- Oman 🇴🇲
+- Yemen 🇾🇪
+- Jordan 🇯🇴
+- Lebanon 🇱🇧
+- Syria 🇸🇾
+- Israel 🇮🇱
+- Palestine 🇵🇸
+- Turkey 🇹🇷
+- Georgia 🇬🇪
+- Armenia 🇦🇲
+- Azerbaijan 🇦🇿
+
+### Oceania
+- Australia 🇦🇺
+- New Zealand 🇳🇿
+- Fiji 🇫🇯
+- Papua New Guinea 🇵🇬
+- Solomon Islands 🇸🇧
+- Vanuatu 🇻🇺
+- New Caledonia 🇳🇨
+- French Polynesia 🇵🇫
+- Tonga 🇹🇴
+- Samoa 🇼🇸
+- Kiribati 🇰🇮
+- Tuvalu 🇹🇻
+- Nauru 🇳🇷
+- Palau 🇵🇼
+- Marshall Islands 🇲🇭
+- Micronesia 🇫🇲
+
+### Africa
+- South Africa 🇿🇦
+- Egypt 🇪🇬
+- Nigeria 🇳🇬
+- Kenya 🇰🇪
+- Ethiopia 🇪🇹
+- Tanzania 🇹🇿
+- Uganda 🇺🇬
+- Ghana 🇬🇭
+- Ivory Coast 🇨🇮
+- Senegal 🇸🇳
+- Mali 🇲🇱
+- Burkina Faso 🇧🇫
+- Niger 🇳🇪
+- Chad 🇹🇩
+- Cameroon 🇨🇲
+- Central African Republic 🇨🇫
+- Republic of the Congo 🇨🇬
+- Democratic Republic of the Congo 🇨🇩
+- Gabon 🇬🇦
+- Equatorial Guinea 🇬🇶
+- São Tomé and Príncipe 🇸🇹
+- Angola 🇦🇴
+- Zambia 🇿🇲
+- Zimbabwe 🇿🇼
+- Botswana 🇧🇼
+- Namibia 🇳🇦
+- Lesotho 🇱🇸
+- Eswatini 🇸🇿
+- Madagascar 🇲🇬
+- Mauritius 🇲🇺
+- Seychelles 🇸🇨
+- Comoros 🇰🇲
+- Djibouti 🇩🇯
+- Somalia 🇸🇴
+- Eritrea 🇪🇷
+- Sudan 🇸🇩
+- South Sudan 🇸🇸
+- Libya 🇱🇾
+- Tunisia 🇹🇳
+- Algeria 🇩🇿
+- Morocco 🇲🇦
+- Western Sahara 🇪🇭
+- Mauritania 🇲🇷
+- Gambia 🇬🇲
+- Guinea-Bissau 🇬🇼
+- Guinea 🇬🇳
+- Sierra Leone 🇸🇱
+- Liberia 🇱🇷
+- Togo 🇹🇬
+- Benin 🇧🇯
+
+### South America
+- Brazil 🇧🇷
+- Argentina 🇦🇷
+- Chile 🇨🇱
+- Colombia 🇨🇴
+- Peru 🇵🇪
+- Venezuela 🇻🇪
+- Ecuador 🇪🇨
+- Bolivia 🇧🇴
+- Paraguay 🇵🇾
+- Uruguay 🇺🇾
+- Guyana 🇬🇾
+- Suriname 🇸🇷
+- Falkland Islands 🇫🇰
+- French Guiana 🇬🇫
+
+### Central America & Caribbean
+- Mexico 🇲🇽
+- Guatemala 🇬🇹
+- Belize 🇧🇿
+- El Salvador 🇸🇻
+- Honduras 🇭🇳
+- Nicaragua 🇳🇮
+- Costa Rica 🇨🇷
+- Panama 🇵🇦
+- Cuba 🇨🇺
+- Jamaica 🇯🇲
+- Haiti 🇭🇹
+- Dominican Republic 🇩🇴
+- Puerto Rico 🇵🇷
+- Trinidad and Tobago 🇹🇹
+- Barbados 🇧🇧
+- Grenada 🇬🇩
+- Saint Lucia 🇱🇨
+- Saint Vincent and the Grenadines 🇻🇨
+- Antigua and Barbuda 🇦🇬
+- Saint Kitts and Nevis 🇰🇳
+- Dominica 🇩🇲
+- Bahamas 🇧🇸
+- Turks and Caicos Islands 🇹🇨
+- Cayman Islands 🇰🇾
+- Bermuda 🇧🇲
+- Anguilla 🇦🇮
+- British Virgin Islands 🇻🇬
+- U.S. Virgin Islands 🇻🇮
+- Aruba 🇦🇼
+- Curaçao 🇨🇼
+- Sint Maarten 🇸🇽
+- Saint Martin 🇲🇫
+- Saint Barthélemy 🇧🇱
+- Guadeloupe 🇬🇵
+- Martinique 🇲🇶
+
+## 🔧 API Endpoints
+
+### Holiday Types
+```http
+GET /api/holidays/types
+```
+
+### Organization Holidays
+```http
+GET /api/holidays/organization?year=2024
+POST /api/holidays/organization
+PUT /api/holidays/organization/:id
+DELETE /api/holidays/organization/:id
+```
+
+### Country Holidays
+```http
+GET /api/holidays/countries
+GET /api/holidays/countries/:country_code?year=2024
+POST /api/holidays/import
+```
+
+### Calendar View
+```http
+GET /api/holidays/calendar?year=2024&month=1
+```
+
+## 📊 Holiday Types
+
+The system supports four types of holidays:
+
+1. **Public Holiday** - Official government holidays (Red)
+2. **Company Holiday** - Organization-specific holidays (Blue)
+3. **Personal Holiday** - Personal or optional holidays (Green)
+4. **Religious Holiday** - Religious observances (Yellow)
+
+## 🎯 Usage Examples
+
+### Import US Holidays
+```javascript
+const result = await holidayApiService.importCountryHolidays({
+  country_code: 'US',
+  year: 2024
+});
+```
+
+### Add Custom Holiday
+```javascript
+const holiday = await holidayApiService.createOrganizationHoliday({
+  name: 'Company Retreat',
+  description: 'Annual team building event',
+  date: '2024-06-15',
+  holiday_type_id: 'company-holiday-id',
+  is_recurring: true
+});
+```
+
+### Get Calendar View
+```javascript
+const calendar = await holidayApiService.getHolidayCalendar(2024, 1);
+```
+
+## 🔄 Data Sources
+
+The holiday data is sourced from the `date-holidays` npm package, which provides:
+
+- **Official government holidays** for 200+ countries
+- **Religious holidays** (Christian, Islamic, Jewish, Hindu, Buddhist)
+- **Cultural and traditional holidays**
+- **Historical and commemorative days**
+
+## 🛠️ Maintenance
+
+### Adding New Countries
+
+1. Add the country to the `countries` table
+2. Update the `populate-holidays.js` script
+3. Run the population script
+
+### Updating Holiday Data
+
+```bash
+# Re-run the holiday population script
+./scripts/run-holiday-population.sh
+```
+
+## 📝 Notes
+
+- Holidays are stored for years 2020-2030 by default
+- The system prevents duplicate holidays on the same date
+- Imported holidays are automatically classified as "Public Holiday" type
+- All holidays support recurring annual patterns
+- The calendar view combines organization and country holidays
+
+## 🎉 Benefits
+
+- **Global Compliance** - Ensure compliance with local holiday regulations
+- **Resource Planning** - Better project scheduling and resource allocation
+- **Team Coordination** - Improved team communication and planning
+- **Cost Management** - Accurate billing and time tracking
+- **Cultural Awareness** - Respect for diverse cultural and religious practices 
--- a/worklenz-backend/package-lock.json
+++ b/worklenz-backend/package-lock.json
@@ -26,6 +26,7 @@
        "crypto-js": "^4.1.1",
        "csrf-sync": "^4.2.1",
        "csurf": "^1.11.0",
+        "date-holidays": "^3.24.4",
        "debug": "^4.3.4",
        "dotenv": "^16.3.1",
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@@ -126,7 +126,7 @@
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+        "node": ">=20.0.0",
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@@ -7097,6 +7088,18 @@
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+      "license": "MIT",
+      "engines": {
+        "node": ">=12.0.0"
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+    },
+    "node_modules/date-holidays": {
+      "version": "3.24.4",
+      "resolved": "https://registry.npmjs.org/date-holidays/-/date-holidays-3.24.4.tgz",
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+      "license": "(ISC AND CC-BY-3.0)",
+      "dependencies": {
+        "date-holidays-parser": "^3.4.7",
+        "js-yaml": "^4.1.0",
+        "lodash": "^4.17.21",
+        "prepin": "^1.0.3"
+      },
+      "bin": {
+        "holidays2json": "scripts/holidays2json.cjs"
+      },
+      "engines": {
+        "node": ">=12.0.0"
+      }
+    },
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+        "date-chinese": "^2.1.4",
+        "date-easter": "^1.0.3",
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      "resolved": "https://registry.npmjs.org/makeerror/-/makeerror-1.0.12.tgz",
@@ -11905,15 +11702,6 @@
        "tmpl": "1.0.5"
      }
    },
-    "node_modules/map-cache": {
-      "version": "0.2.2",
-      "resolved": "https://registry.npmjs.org/map-cache/-/map-cache-0.2.2.tgz",
-      "integrity": "sha512-8y/eV9QQZCiyn1SprXSrCmqJN0yNRATe+PO8ztwqrvrbdRLA3eYJF0yaR0YayLWkMbsQSKWS9N2gPcGEc4UsZg==",
-      "license": "MIT",
-      "engines": {
-        "node": ">=0.10.0"
-      }
-    },
    "node_modules/math-intrinsics": {
      "version": "1.1.0",
      "resolved": "https://registry.npmjs.org/math-intrinsics/-/math-intrinsics-1.1.0.tgz",
@@ -11971,6 +11759,7 @@
      "version": "4.0.8",
      "resolved": "https://registry.npmjs.org/micromatch/-/micromatch-4.0.8.tgz",
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+      "dev": true,
      "license": "MIT",
      "dependencies": {
        "braces": "^3.0.3",
@@ -12418,46 +12207,6 @@
        "url": "https://github.com/sponsors/ljharb"
      }
    },
-    "node_modules/object.defaults": {
-      "version": "1.1.0",
-      "resolved": "https://registry.npmjs.org/object.defaults/-/object.defaults-1.1.0.tgz",
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-      "license": "MIT",
-      "dependencies": {
-        "array-each": "^1.0.1",
-        "array-slice": "^1.0.0",
-        "for-own": "^1.0.0",
-        "isobject": "^3.0.0"
-      },
-      "engines": {
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-    },
-    "node_modules/object.map": {
-      "version": "1.0.1",
-      "resolved": "https://registry.npmjs.org/object.map/-/object.map-1.0.1.tgz",
-      "integrity": "sha512-3+mAJu2PLfnSVGHwIWubpOFLscJANBKuB/6A4CxBstc4aqwQY0FWcsppuy4jU5GSB95yES5JHSI+33AWuS4k6w==",
-      "license": "MIT",
-      "dependencies": {
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-        "make-iterator": "^1.0.0"
-      },
-      "engines": {
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-    "node_modules/object.pick": {
-      "version": "1.3.0",
-      "resolved": "https://registry.npmjs.org/object.pick/-/object.pick-1.3.0.tgz",
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-      "license": "MIT",
-      "dependencies": {
-        "isobject": "^3.0.1"
-      },
-      "engines": {
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      "resolved": "https://registry.npmjs.org/on-finished/-/on-finished-2.4.1.tgz",
@@ -12620,20 +12369,6 @@
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      }
    },
-    "node_modules/parse-filepath": {
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-      "resolved": "https://registry.npmjs.org/parse-filepath/-/parse-filepath-1.0.2.tgz",
-      "integrity": "sha512-FwdRXKCohSVeXqwtYonZTXtbGJKrn+HNyWDYVcp5yuJlesTwNH4rsmRZ+GrKAPJ5bLpRxESMeS+Rl0VCHRvB2Q==",
-      "license": "MIT",
-      "dependencies": {
-        "is-absolute": "^1.0.0",
-        "map-cache": "^0.2.0",
-        "path-root": "^0.1.1"
-      },
-      "engines": {
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    "node_modules/parse-json": {
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      "resolved": "https://registry.npmjs.org/parse-json/-/parse-json-5.2.0.tgz",
@@ -12653,15 +12388,6 @@
        "url": "https://github.com/sponsors/sindresorhus"
      }
    },
-    "node_modules/parse-passwd": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/parse-passwd/-/parse-passwd-1.0.0.tgz",
-      "integrity": "sha512-1Y1A//QUXEZK7YKz+rD9WydcE1+EuPr6ZBgKecAB8tmoW6UFv0NREVJe1p+jRxtThkcbbKkfwIbWJe/IeE6m2Q==",
-      "license": "MIT",
-      "engines": {
-        "node": ">=0.10.0"
-      }
-    },
    "node_modules/parse-srcset": {
      "version": "1.0.2",
      "resolved": "https://registry.npmjs.org/parse-srcset/-/parse-srcset-1.0.2.tgz",
@@ -12800,27 +12526,6 @@
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      "license": "MIT"
    },
-    "node_modules/path-root": {
-      "version": "0.1.1",
-      "resolved": "https://registry.npmjs.org/path-root/-/path-root-0.1.1.tgz",
-      "integrity": "sha512-QLcPegTHF11axjfojBIoDygmS2E3Lf+8+jI6wOVmNVenrKSo3mFdSGiIgdSHenczw3wPtlVMQaFVwGmM7BJdtg==",
-      "license": "MIT",
-      "dependencies": {
-        "path-root-regex": "^0.1.0"
-      },
-      "engines": {
-        "node": ">=0.10.0"
-      }
-    },
-    "node_modules/path-root-regex": {
-      "version": "0.1.2",
-      "resolved": "https://registry.npmjs.org/path-root-regex/-/path-root-regex-0.1.2.tgz",
-      "integrity": "sha512-4GlJ6rZDhQZFE0DPVKh0e9jmZ5egZfxTkp7bcRDuPlJXbAwhxcl2dINPUAsjLdejqaLsCeg8axcLjIbvBjN4pQ==",
-      "license": "MIT",
-      "engines": {
-        "node": ">=0.10.0"
-      }
-    },
    "node_modules/path-scurry": {
      "version": "2.0.0",
      "resolved": "https://registry.npmjs.org/path-scurry/-/path-scurry-2.0.0.tgz",
@@ -12968,6 +12673,7 @@
      "version": "2.3.1",
      "resolved": "https://registry.npmjs.org/picomatch/-/picomatch-2.3.1.tgz",
      "integrity": "sha512-JU3teHTNjmE2VCGFzuY8EXzCDVwEqB2a8fsIvwaStHhAWJEeVd1o1QD80CU6+ZdEXXSLbSsuLwJjkCBWqRQUVA==",
+      "dev": true,
      "license": "MIT",
      "engines": {
        "node": ">=8.6"
@@ -13176,6 +12882,15 @@
        "node": ">= 0.8.0"
      }
    },
+    "node_modules/prepin": {
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/prepin/-/prepin-1.0.3.tgz",
+      "integrity": "sha512-0XL2hreherEEvUy0fiaGEfN/ioXFV+JpImqIzQjxk6iBg4jQ2ARKqvC4+BmRD8w/pnpD+lbxvh0Ub+z7yBEjvA==",
+      "license": "Unlicense",
+      "bin": {
+        "prepin": "bin/prepin.js"
+      }
+    },
    "node_modules/pretty-format": {
      "version": "28.1.3",
      "resolved": "https://registry.npmjs.org/pretty-format/-/pretty-format-28.1.3.tgz",
@@ -13563,18 +13278,6 @@
        "node": ">=8.10.0"
      }
    },
-    "node_modules/rechoir": {
-      "version": "0.7.1",
-      "resolved": "https://registry.npmjs.org/rechoir/-/rechoir-0.7.1.tgz",
-      "integrity": "sha512-/njmZ8s1wVeR6pjTZ+0nCnv8SpZNRMT2D1RLOJQESlYFDBvwpTA4KWJpZ+sBJ4+vhjILRcK7JIFdGCdxEAAitg==",
-      "license": "MIT",
-      "dependencies": {
-        "resolve": "^1.9.0"
-      },
-      "engines": {
-        "node": ">= 0.10"
-      }
-    },
    "node_modules/redis": {
      "version": "4.7.1",
      "resolved": "https://registry.npmjs.org/redis/-/redis-4.7.1.tgz",
@@ -13726,19 +13429,6 @@
        "node": ">=8"
      }
    },
-    "node_modules/resolve-dir": {
-      "version": "1.0.1",
-      "resolved": "https://registry.npmjs.org/resolve-dir/-/resolve-dir-1.0.1.tgz",
-      "integrity": "sha512-R7uiTjECzvOsWSfdM0QKFNBVFcK27aHOUwdvK53BcW8zqnGdYp0Fbj82cy54+2A4P2tFM22J5kRfe1R+lM/1yg==",
-      "license": "MIT",
-      "dependencies": {
-        "expand-tilde": "^2.0.0",
-        "global-modules": "^1.0.0"
-      },
-      "engines": {
-        "node": ">=0.10.0"
-      }
-    },
    "node_modules/resolve-from": {
      "version": "4.0.0",
      "resolved": "https://registry.npmjs.org/resolve-from/-/resolve-from-4.0.0.tgz",
@@ -14974,6 +14664,7 @@
      "version": "5.0.1",
      "resolved": "https://registry.npmjs.org/to-regex-range/-/to-regex-range-5.0.1.tgz",
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+      "dev": true,
      "license": "MIT",
      "dependencies": {
        "is-number": "^7.0.0"
@@ -15494,15 +15185,6 @@
      "integrity": "sha512-IevTus0SbGwQzYh3+fRsAMTVVPOoIVufzacXcHPmdlle1jUpq7BRL+mw3dgeLanvGZdwwbWhRV6XrcFNdBmjWA==",
      "license": "MIT"
    },
-    "node_modules/unc-path-regex": {
-      "version": "0.1.2",
-      "resolved": "https://registry.npmjs.org/unc-path-regex/-/unc-path-regex-0.1.2.tgz",
-      "integrity": "sha512-eXL4nmJT7oCpkZsHZUOJo8hcX3GbsiDOa0Qu9F646fi8dT3XuSVopVqAcEiVzSKKH7UoDti23wNX3qGFxcW5Qg==",
-      "license": "MIT",
-      "engines": {
-        "node": ">=0.10.0"
-      }
-    },
    "node_modules/undici-types": {
      "version": "5.26.5",
      "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-5.26.5.tgz",
@@ -15732,15 +15414,6 @@
        "node": ">=10.12.0"
      }
    },
-    "node_modules/v8flags": {
-      "version": "4.0.1",
-      "resolved": "https://registry.npmjs.org/v8flags/-/v8flags-4.0.1.tgz",
-      "integrity": "sha512-fcRLaS4H/hrZk9hYwbdRM35D0U8IYMfEClhXxCivOojl+yTRAZH3Zy2sSy6qVCiGbV9YAtPssP6jaChqC9vPCg==",
-      "license": "MIT",
-      "engines": {
-        "node": ">= 10.13.0"
-      }
-    },
    "node_modules/validator": {
      "version": "13.15.15",
      "resolved": "https://registry.npmjs.org/validator/-/validator-13.15.15.tgz",
--- a/worklenz-backend/package.json
+++ b/worklenz-backend/package.json
@@ -61,6 +61,7 @@
    "crypto-js": "^4.1.1",
    "csrf-sync": "^4.2.1",
    "csurf": "^1.11.0",
+    "date-holidays": "^3.24.4",
    "debug": "^4.3.4",
    "dotenv": "^16.3.1",
    "exceljs": "^4.3.0",
--- a/worklenz-backend/scripts/populate-holidays.js
+++ b/worklenz-backend/scripts/populate-holidays.js
@@ -0,0 +1,265 @@
+const Holidays = require('date-holidays');
+const { Pool } = require('pg');
+const config = require('../src/config/db-config');
+
+// Database connection
+const pool = new Pool(config);
+
+// Countries to populate with holidays
+const countries = [
+  { code: 'US', name: 'United States' },
+  { code: 'GB', name: 'United Kingdom' },
+  { code: 'CA', name: 'Canada' },
+  { code: 'AU', name: 'Australia' },
+  { code: 'DE', name: 'Germany' },
+  { code: 'FR', name: 'France' },
+  { code: 'IT', name: 'Italy' },
+  { code: 'ES', name: 'Spain' },
+  { code: 'NL', name: 'Netherlands' },
+  { code: 'BE', name: 'Belgium' },
+  { code: 'CH', name: 'Switzerland' },
+  { code: 'AT', name: 'Austria' },
+  { code: 'SE', name: 'Sweden' },
+  { code: 'NO', name: 'Norway' },
+  { code: 'DK', name: 'Denmark' },
+  { code: 'FI', name: 'Finland' },
+  { code: 'PL', name: 'Poland' },
+  { code: 'CZ', name: 'Czech Republic' },
+  { code: 'HU', name: 'Hungary' },
+  { code: 'RO', name: 'Romania' },
+  { code: 'BG', name: 'Bulgaria' },
+  { code: 'HR', name: 'Croatia' },
+  { code: 'SI', name: 'Slovenia' },
+  { code: 'SK', name: 'Slovakia' },
+  { code: 'LT', name: 'Lithuania' },
+  { code: 'LV', name: 'Latvia' },
+  { code: 'EE', name: 'Estonia' },
+  { code: 'IE', name: 'Ireland' },
+  { code: 'PT', name: 'Portugal' },
+  { code: 'GR', name: 'Greece' },
+  { code: 'CY', name: 'Cyprus' },
+  { code: 'MT', name: 'Malta' },
+  { code: 'LU', name: 'Luxembourg' },
+  { code: 'IS', name: 'Iceland' },
+  { code: 'CN', name: 'China' },
+  { code: 'JP', name: 'Japan' },
+  { code: 'KR', name: 'South Korea' },
+  { code: 'IN', name: 'India' },
+  { code: 'PK', name: 'Pakistan' },
+  { code: 'BD', name: 'Bangladesh' },
+  { code: 'LK', name: 'Sri Lanka' },
+  { code: 'NP', name: 'Nepal' },
+  { code: 'TH', name: 'Thailand' },
+  { code: 'VN', name: 'Vietnam' },
+  { code: 'MY', name: 'Malaysia' },
+  { code: 'SG', name: 'Singapore' },
+  { code: 'ID', name: 'Indonesia' },
+  { code: 'PH', name: 'Philippines' },
+  { code: 'MM', name: 'Myanmar' },
+  { code: 'KH', name: 'Cambodia' },
+  { code: 'LA', name: 'Laos' },
+  { code: 'BN', name: 'Brunei' },
+  { code: 'TL', name: 'Timor-Leste' },
+  { code: 'MN', name: 'Mongolia' },
+  { code: 'KZ', name: 'Kazakhstan' },
+  { code: 'UZ', name: 'Uzbekistan' },
+  { code: 'KG', name: 'Kyrgyzstan' },
+  { code: 'TJ', name: 'Tajikistan' },
+  { code: 'TM', name: 'Turkmenistan' },
+  { code: 'AF', name: 'Afghanistan' },
+  { code: 'IR', name: 'Iran' },
+  { code: 'IQ', name: 'Iraq' },
+  { code: 'SA', name: 'Saudi Arabia' },
+  { code: 'AE', name: 'United Arab Emirates' },
+  { code: 'QA', name: 'Qatar' },
+  { code: 'KW', name: 'Kuwait' },
+  { code: 'BH', name: 'Bahrain' },
+  { code: 'OM', name: 'Oman' },
+  { code: 'YE', name: 'Yemen' },
+  { code: 'JO', name: 'Jordan' },
+  { code: 'LB', name: 'Lebanon' },
+  { code: 'SY', name: 'Syria' },
+  { code: 'IL', name: 'Israel' },
+  { code: 'PS', name: 'Palestine' },
+  { code: 'TR', name: 'Turkey' },
+  { code: 'GE', name: 'Georgia' },
+  { code: 'AM', name: 'Armenia' },
+  { code: 'AZ', name: 'Azerbaijan' },
+  { code: 'NZ', name: 'New Zealand' },
+  { code: 'FJ', name: 'Fiji' },
+  { code: 'PG', name: 'Papua New Guinea' },
+  { code: 'SB', name: 'Solomon Islands' },
+  { code: 'VU', name: 'Vanuatu' },
+  { code: 'NC', name: 'New Caledonia' },
+  { code: 'PF', name: 'French Polynesia' },
+  { code: 'TO', name: 'Tonga' },
+  { code: 'WS', name: 'Samoa' },
+  { code: 'KI', name: 'Kiribati' },
+  { code: 'TV', name: 'Tuvalu' },
+  { code: 'NR', name: 'Nauru' },
+  { code: 'PW', name: 'Palau' },
+  { code: 'MH', name: 'Marshall Islands' },
+  { code: 'FM', name: 'Micronesia' },
+  { code: 'ZA', name: 'South Africa' },
+  { code: 'EG', name: 'Egypt' },
+  { code: 'NG', name: 'Nigeria' },
+  { code: 'KE', name: 'Kenya' },
+  { code: 'ET', name: 'Ethiopia' },
+  { code: 'TZ', name: 'Tanzania' },
+  { code: 'UG', name: 'Uganda' },
+  { code: 'GH', name: 'Ghana' },
+  { code: 'CI', name: 'Ivory Coast' },
+  { code: 'SN', name: 'Senegal' },
+  { code: 'ML', name: 'Mali' },
+  { code: 'BF', name: 'Burkina Faso' },
+  { code: 'NE', name: 'Niger' },
+  { code: 'TD', name: 'Chad' },
+  { code: 'CM', name: 'Cameroon' },
+  { code: 'CF', name: 'Central African Republic' },
+  { code: 'CG', name: 'Republic of the Congo' },
+  { code: 'CD', name: 'Democratic Republic of the Congo' },
+  { code: 'GA', name: 'Gabon' },
+  { code: 'GQ', name: 'Equatorial Guinea' },
+  { code: 'ST', name: 'São Tomé and Príncipe' },
+  { code: 'AO', name: 'Angola' },
+  { code: 'ZM', name: 'Zambia' },
+  { code: 'ZW', name: 'Zimbabwe' },
+  { code: 'BW', name: 'Botswana' },
+  { code: 'NA', name: 'Namibia' },
+  { code: 'LS', name: 'Lesotho' },
+  { code: 'SZ', name: 'Eswatini' },
+  { code: 'MG', name: 'Madagascar' },
+  { code: 'MU', name: 'Mauritius' },
+  { code: 'SC', name: 'Seychelles' },
+  { code: 'KM', name: 'Comoros' },
+  { code: 'DJ', name: 'Djibouti' },
+  { code: 'SO', name: 'Somalia' },
+  { code: 'ER', name: 'Eritrea' },
+  { code: 'SD', name: 'Sudan' },
+  { code: 'SS', name: 'South Sudan' },
+  { code: 'LY', name: 'Libya' },
+  { code: 'TN', name: 'Tunisia' },
+  { code: 'DZ', name: 'Algeria' },
+  { code: 'MA', name: 'Morocco' },
+  { code: 'EH', name: 'Western Sahara' },
+  { code: 'MR', name: 'Mauritania' },
+  { code: 'GM', name: 'Gambia' },
+  { code: 'GW', name: 'Guinea-Bissau' },
+  { code: 'GN', name: 'Guinea' },
+  { code: 'SL', name: 'Sierra Leone' },
+  { code: 'LR', name: 'Liberia' },
+  { code: 'TG', name: 'Togo' },
+  { code: 'BJ', name: 'Benin' },
+  { code: 'BR', name: 'Brazil' },
+  { code: 'AR', name: 'Argentina' },
+  { code: 'CL', name: 'Chile' },
+  { code: 'CO', name: 'Colombia' },
+  { code: 'PE', name: 'Peru' },
+  { code: 'VE', name: 'Venezuela' },
+  { code: 'EC', name: 'Ecuador' },
+  { code: 'BO', name: 'Bolivia' },
+  { code: 'PY', name: 'Paraguay' },
+  { code: 'UY', name: 'Uruguay' },
+  { code: 'GY', name: 'Guyana' },
+  { code: 'SR', name: 'Suriname' },
+  { code: 'FK', name: 'Falkland Islands' },
+  { code: 'GF', name: 'French Guiana' },
+  { code: 'MX', name: 'Mexico' },
+  { code: 'GT', name: 'Guatemala' },
+  { code: 'BZ', name: 'Belize' },
+  { code: 'SV', name: 'El Salvador' },
+  { code: 'HN', name: 'Honduras' },
+  { code: 'NI', name: 'Nicaragua' },
+  { code: 'CR', name: 'Costa Rica' },
+  { code: 'PA', name: 'Panama' },
+  { code: 'CU', name: 'Cuba' },
+  { code: 'JM', name: 'Jamaica' },
+  { code: 'HT', name: 'Haiti' },
+  { code: 'DO', name: 'Dominican Republic' },
+  { code: 'PR', name: 'Puerto Rico' },
+  { code: 'TT', name: 'Trinidad and Tobago' },
+  { code: 'BB', name: 'Barbados' },
+  { code: 'GD', name: 'Grenada' },
+  { code: 'LC', name: 'Saint Lucia' },
+  { code: 'VC', name: 'Saint Vincent and the Grenadines' },
+  { code: 'AG', name: 'Antigua and Barbuda' },
+  { code: 'KN', name: 'Saint Kitts and Nevis' },
+  { code: 'DM', name: 'Dominica' },
+  { code: 'BS', name: 'Bahamas' },
+  { code: 'TC', name: 'Turks and Caicos Islands' },
+  { code: 'KY', name: 'Cayman Islands' },
+  { code: 'BM', name: 'Bermuda' },
+  { code: 'AI', name: 'Anguilla' },
+  { code: 'VG', name: 'British Virgin Islands' },
+  { code: 'VI', name: 'U.S. Virgin Islands' },
+  { code: 'AW', name: 'Aruba' },
+  { code: 'CW', name: 'Curaçao' },
+  { code: 'SX', name: 'Sint Maarten' },
+  { code: 'MF', name: 'Saint Martin' },
+  { code: 'BL', name: 'Saint Barthélemy' },
+  { code: 'GP', name: 'Guadeloupe' },
+  { code: 'MQ', name: 'Martinique' }
+];
+
+async function populateHolidays() {
+  const client = await pool.connect();
+  
+  try {
+    console.log('Starting holiday population...');
+    
+    for (const country of countries) {
+      console.log(`Processing ${country.name} (${country.code})...`);
+      
+      try {
+        const hd = new Holidays(country.code);
+        
+        // Get holidays for multiple years (2020-2030)
+        for (let year = 2020; year <= 2030; year++) {
+          const holidays = hd.getHolidays(year);
+          
+          for (const holiday of holidays) {
+            // Skip if holiday is not a date object
+            if (!holiday.date || typeof holiday.date !== 'object') {
+              continue;
+            }
+            
+            const dateStr = holiday.date.toISOString().split('T')[0];
+            const name = holiday.name || 'Unknown Holiday';
+            const description = holiday.type || 'Public Holiday';
+            
+            // Insert holiday into database
+            const query = `
+              INSERT INTO country_holidays (country_code, name, description, date, is_recurring)
+              VALUES ($1, $2, $3, $4, $5)
+              ON CONFLICT (country_code, name, date) DO NOTHING
+            `;
+            
+            await client.query(query, [
+              country.code,
+              name,
+              description,
+              dateStr,
+              true // Most holidays are recurring
+            ]);
+          }
+        }
+        
+        console.log(`✓ Completed ${country.name}`);
+        
+      } catch (error) {
+        console.log(`✗ Error processing ${country.name}: ${error.message}`);
+      }
+    }
+    
+    console.log('Holiday population completed!');
+    
+  } catch (error) {
+    console.error('Database error:', error);
+  } finally {
+    client.release();
+    await pool.end();
+  }
+}
+
+// Run the script
+populateHolidays().catch(console.error); 
--- a/worklenz-backend/scripts/run-holiday-population.sh
+++ b/worklenz-backend/scripts/run-holiday-population.sh
@@ -0,0 +1,25 @@
+#!/bin/bash
+
+echo "🌍 Starting Holiday Population Script..."
+echo "This will populate the database with holidays for 200+ countries using the date-holidays npm package."
+echo ""
+
+# Check if Node.js is installed
+if ! command -v node &> /dev/null; then
+    echo "❌ Node.js is not installed. Please install Node.js first."
+    exit 1
+fi
+
+# Check if the script exists
+if [ ! -f "scripts/populate-holidays.js" ]; then
+    echo "❌ Holiday population script not found."
+    exit 1
+fi
+
+# Run the holiday population script
+echo "🚀 Running holiday population script..."
+node scripts/populate-holidays.js
+
+echo ""
+echo "✅ Holiday population completed!"
+echo "You can now use the holiday import feature in the admin center." 
--- a/worklenz-backend/src/controllers/holiday-controller.ts
+++ b/worklenz-backend/src/controllers/holiday-controller.ts
@@ -0,0 +1,264 @@
+import { IWorkLenzRequest } from '../interfaces/worklenz-request';
+import { IWorkLenzResponse } from '../interfaces/worklenz-response';
+import db from '../config/db';
+import { ServerResponse } from '../models/server-response';
+import WorklenzControllerBase from './worklenz-controller-base';
+import HandleExceptions from '../decorators/handle-exceptions';
+import {
+  ICreateHolidayRequest,
+  IUpdateHolidayRequest,
+  IImportCountryHolidaysRequest,
+} from '../interfaces/holiday.interface';
+
+export default class HolidayController extends WorklenzControllerBase {
+  @HandleExceptions()
+  public static async getHolidayTypes(req: IWorkLenzRequest, res: IWorkLenzResponse): Promise<IWorkLenzResponse> {
+    const q = `SELECT id, name, description, color_code, created_at, updated_at
+               FROM holiday_types
+               ORDER BY name;`;
+    const result = await db.query(q);
+    return res.status(200).send(new ServerResponse(true, result.rows));
+  }
+
+  @HandleExceptions()
+  public static async getOrganizationHolidays(req: IWorkLenzRequest, res: IWorkLenzResponse): Promise<IWorkLenzResponse> {
+    const { year } = req.query;
+    const yearFilter = year ? `AND EXTRACT(YEAR FROM date) = $2` : '';
+    const params = year ? [req.user?.owner_id, year] : [req.user?.owner_id];
+
+    const q = `SELECT oh.id, oh.organization_id, oh.holiday_type_id, oh.name, oh.description, 
+                      oh.date, oh.is_recurring, oh.created_at, oh.updated_at,
+                      ht.name as holiday_type_name, ht.color_code
+               FROM organization_holidays oh
+               JOIN holiday_types ht ON oh.holiday_type_id = ht.id
+               WHERE oh.organization_id = (
+                 SELECT id FROM organizations WHERE user_id = $1
+               ) ${yearFilter}
+               ORDER BY oh.date;`;
+    
+    const result = await db.query(q, params);
+    return res.status(200).send(new ServerResponse(true, result.rows));
+  }
+
+  @HandleExceptions()
+  public static async createOrganizationHoliday(req: IWorkLenzRequest, res: IWorkLenzResponse): Promise<IWorkLenzResponse> {
+    const { name, description, date, holiday_type_id, is_recurring = false }: ICreateHolidayRequest = req.body;
+
+    const q = `INSERT INTO organization_holidays (organization_id, holiday_type_id, name, description, date, is_recurring)
+               VALUES (
+                 (SELECT id FROM organizations WHERE user_id = $1),
+                 $2, $3, $4, $5, $6
+               )
+               RETURNING id;`;
+    
+    const result = await db.query(q, [req.user?.owner_id, holiday_type_id, name, description, date, is_recurring]);
+    return res.status(201).send(new ServerResponse(true, result.rows[0]));
+  }
+
+  @HandleExceptions()
+  public static async updateOrganizationHoliday(req: IWorkLenzRequest, res: IWorkLenzResponse): Promise<IWorkLenzResponse> {
+    const { id } = req.params;
+    const { name, description, date, holiday_type_id, is_recurring }: IUpdateHolidayRequest = req.body;
+
+    const updateFields = [];
+    const values = [req.user?.owner_id, id];
+    let paramIndex = 3;
+
+    if (name !== undefined) {
+      updateFields.push(`name = $${paramIndex++}`);
+      values.push(name);
+    }
+    if (description !== undefined) {
+      updateFields.push(`description = $${paramIndex++}`);
+      values.push(description);
+    }
+    if (date !== undefined) {
+      updateFields.push(`date = $${paramIndex++}`);
+      values.push(date);
+    }
+    if (holiday_type_id !== undefined) {
+      updateFields.push(`holiday_type_id = $${paramIndex++}`);
+      values.push(holiday_type_id);
+    }
+    if (is_recurring !== undefined) {
+      updateFields.push(`is_recurring = $${paramIndex++}`);
+      values.push(is_recurring.toString());
+    }
+
+    if (updateFields.length === 0) {
+      return res.status(400).send(new ServerResponse(false, 'No fields to update'));
+    }
+
+    const q = `UPDATE organization_holidays 
+               SET ${updateFields.join(', ')}, updated_at = CURRENT_TIMESTAMP
+               WHERE id = $2 AND organization_id = (
+                 SELECT id FROM organizations WHERE user_id = $1
+               )
+               RETURNING id;`;
+    
+    const result = await db.query(q, values);
+    
+    if (result.rows.length === 0) {
+      return res.status(404).send(new ServerResponse(false, 'Holiday not found'));
+    }
+
+    return res.status(200).send(new ServerResponse(true, result.rows[0]));
+  }
+
+  @HandleExceptions()
+  public static async deleteOrganizationHoliday(req: IWorkLenzRequest, res: IWorkLenzResponse): Promise<IWorkLenzResponse> {
+    const { id } = req.params;
+
+    const q = `DELETE FROM organization_holidays 
+               WHERE id = $2 AND organization_id = (
+                 SELECT id FROM organizations WHERE user_id = $1
+               )
+               RETURNING id;`;
+    
+    const result = await db.query(q, [req.user?.owner_id, id]);
+    
+    if (result.rows.length === 0) {
+      return res.status(404).send(new ServerResponse(false, 'Holiday not found'));
+    }
+
+    return res.status(200).send(new ServerResponse(true, { message: 'Holiday deleted successfully' }));
+  }
+
+  @HandleExceptions()
+  public static async getCountryHolidays(req: IWorkLenzRequest, res: IWorkLenzResponse): Promise<IWorkLenzResponse> {
+    const { country_code, year } = req.query;
+    
+    if (!country_code) {
+      return res.status(400).send(new ServerResponse(false, 'Country code is required'));
+    }
+
+    const yearFilter = year ? `AND EXTRACT(YEAR FROM date) = $2` : '';
+    const params = year ? [country_code, year] : [country_code];
+
+    const q = `SELECT id, country_code, name, description, date, is_recurring, created_at, updated_at
+               FROM country_holidays
+               WHERE country_code = $1 ${yearFilter}
+               ORDER BY date;`;
+    
+    const result = await db.query(q, params);
+    return res.status(200).send(new ServerResponse(true, result.rows));
+  }
+
+  @HandleExceptions()
+  public static async getAvailableCountries(req: IWorkLenzRequest, res: IWorkLenzResponse): Promise<IWorkLenzResponse> {
+    const q = `SELECT DISTINCT c.code, c.name
+               FROM countries c
+               JOIN country_holidays ch ON c.code = ch.country_code
+               ORDER BY c.name;`;
+    
+    const result = await db.query(q);
+    return res.status(200).send(new ServerResponse(true, result.rows));
+  }
+
+  @HandleExceptions()
+  public static async importCountryHolidays(req: IWorkLenzRequest, res: IWorkLenzResponse): Promise<IWorkLenzResponse> {
+    const { country_code, year }: IImportCountryHolidaysRequest = req.body;
+    
+    if (!country_code) {
+      return res.status(400).send(new ServerResponse(false, 'Country code is required'));
+    }
+
+    // Get organization ID
+    const orgQ = `SELECT id FROM organizations WHERE user_id = $1`;
+    const orgResult = await db.query(orgQ, [req.user?.owner_id]);
+    const organizationId = orgResult.rows[0]?.id;
+
+    if (!organizationId) {
+      return res.status(404).send(new ServerResponse(false, 'Organization not found'));
+    }
+
+    // Get default holiday type (Public Holiday)
+    const typeQ = `SELECT id FROM holiday_types WHERE name = 'Public Holiday' LIMIT 1`;
+    const typeResult = await db.query(typeQ);
+    const holidayTypeId = typeResult.rows[0]?.id;
+
+    if (!holidayTypeId) {
+      return res.status(404).send(new ServerResponse(false, 'Default holiday type not found'));
+    }
+
+    // Get country holidays for the specified year
+    const yearFilter = year ? `AND EXTRACT(YEAR FROM date) = $2` : '';
+    const params = year ? [country_code, year] : [country_code];
+
+    const holidaysQ = `SELECT name, description, date, is_recurring
+                       FROM country_holidays
+                       WHERE country_code = $1 ${yearFilter}`;
+    
+    const holidaysResult = await db.query(holidaysQ, params);
+
+    if (holidaysResult.rows.length === 0) {
+      return res.status(404).send(new ServerResponse(false, 'No holidays found for this country and year'));
+    }
+
+    // Import holidays to organization
+    const importQ = `INSERT INTO organization_holidays (organization_id, holiday_type_id, name, description, date, is_recurring)
+                     VALUES ($1, $2, $3, $4, $5, $6)
+                     ON CONFLICT (organization_id, date) DO NOTHING`;
+
+    let importedCount = 0;
+    for (const holiday of holidaysResult.rows) {
+      try {
+        await db.query(importQ, [
+          organizationId,
+          holidayTypeId,
+          holiday.name,
+          holiday.description,
+          holiday.date,
+          holiday.is_recurring
+        ]);
+        importedCount++;
+      } catch (error) {
+        // Skip duplicates
+        continue;
+      }
+    }
+
+    return res.status(200).send(new ServerResponse(true, { 
+      message: `Successfully imported ${importedCount} holidays`,
+      imported_count: importedCount 
+    }));
+  }
+
+  @HandleExceptions()
+  public static async getHolidayCalendar(req: IWorkLenzRequest, res: IWorkLenzResponse): Promise<IWorkLenzResponse> {
+    const { year, month } = req.query;
+    
+    if (!year || !month) {
+      return res.status(400).send(new ServerResponse(false, 'Year and month are required'));
+    }
+
+    const q = `SELECT oh.id, oh.name, oh.description, oh.date, oh.is_recurring,
+                      ht.name as holiday_type_name, ht.color_code,
+                      'organization' as source
+               FROM organization_holidays oh
+               JOIN holiday_types ht ON oh.holiday_type_id = ht.id
+               WHERE oh.organization_id = (
+                 SELECT id FROM organizations WHERE user_id = $1
+               )
+               AND EXTRACT(YEAR FROM oh.date) = $2
+               AND EXTRACT(MONTH FROM oh.date) = $3
+               
+               UNION ALL
+               
+               SELECT ch.id, ch.name, ch.description, ch.date, ch.is_recurring,
+                      'Public Holiday' as holiday_type_name, '#f37070' as color_code,
+                      'country' as source
+               FROM country_holidays ch
+               JOIN organizations o ON ch.country_code = (
+                 SELECT c.code FROM countries c WHERE c.id = o.country
+               )
+               WHERE o.user_id = $1
+               AND EXTRACT(YEAR FROM ch.date) = $2
+               AND EXTRACT(MONTH FROM ch.date) = $3
+               
+               ORDER BY date;`;
+    
+    const result = await db.query(q, [req.user?.owner_id, year, month]);
+    return res.status(200).send(new ServerResponse(true, result.rows));
+  }
+} 
--- a/worklenz-backend/src/interfaces/holiday.interface.ts
+++ b/worklenz-backend/src/interfaces/holiday.interface.ts
@@ -0,0 +1,54 @@
+export interface IHolidayType {
+  id: string;
+  name: string;
+  description?: string;
+  color_code: string;
+  created_at: string;
+  updated_at: string;
+}
+
+export interface IOrganizationHoliday {
+  id: string;
+  organization_id: string;
+  holiday_type_id: string;
+  name: string;
+  description?: string;
+  date: string;
+  is_recurring: boolean;
+  created_at: string;
+  updated_at: string;
+  holiday_type?: IHolidayType;
+}
+
+export interface ICountryHoliday {
+  id: string;
+  country_code: string;
+  name: string;
+  description?: string;
+  date: string;
+  is_recurring: boolean;
+  created_at: string;
+  updated_at: string;
+}
+
+export interface ICreateHolidayRequest {
+  name: string;
+  description?: string;
+  date: string;
+  holiday_type_id: string;
+  is_recurring?: boolean;
+}
+
+export interface IUpdateHolidayRequest {
+  id: string;
+  name?: string;
+  description?: string;
+  date?: string;
+  holiday_type_id?: string;
+  is_recurring?: boolean;
+}
+
+export interface IImportCountryHolidaysRequest {
+  country_code: string;
+  year?: number;
+} 
--- a/worklenz-backend/src/routes/apis/holiday-api-router.ts
+++ b/worklenz-backend/src/routes/apis/holiday-api-router.ts
@@ -0,0 +1,26 @@
+import express from 'express';
+import HolidayController from '../../controllers/holiday-controller';
+import safeControllerFunction from '../../shared/safe-controller-function';
+import teamOwnerOrAdminValidator from '../../middlewares/validators/team-owner-or-admin-validator';
+import idParamValidator from '../../middlewares/validators/id-param-validator';
+
+const holidayApiRouter = express.Router();
+
+// Holiday types
+holidayApiRouter.get('/types', safeControllerFunction(HolidayController.getHolidayTypes));
+
+// Organization holidays
+holidayApiRouter.get('/organization', teamOwnerOrAdminValidator, safeControllerFunction(HolidayController.getOrganizationHolidays));
+holidayApiRouter.post('/organization', teamOwnerOrAdminValidator, safeControllerFunction(HolidayController.createOrganizationHoliday));
+holidayApiRouter.put('/organization/:id', teamOwnerOrAdminValidator, idParamValidator, safeControllerFunction(HolidayController.updateOrganizationHoliday));
+holidayApiRouter.delete('/organization/:id', teamOwnerOrAdminValidator, idParamValidator, safeControllerFunction(HolidayController.deleteOrganizationHoliday));
+
+// Country holidays
+holidayApiRouter.get('/countries', safeControllerFunction(HolidayController.getAvailableCountries));
+holidayApiRouter.get('/countries/:country_code', safeControllerFunction(HolidayController.getCountryHolidays));
+holidayApiRouter.post('/import', teamOwnerOrAdminValidator, safeControllerFunction(HolidayController.importCountryHolidays));
+
+// Calendar view
+holidayApiRouter.get('/calendar', teamOwnerOrAdminValidator, safeControllerFunction(HolidayController.getHolidayCalendar));
+
+export default holidayApiRouter; 
--- a/worklenz-backend/src/routes/apis/index.ts
+++ b/worklenz-backend/src/routes/apis/index.ts
@@ -56,7 +56,9 @@ import billingApiRouter from "./billing-api-router";
 import taskDependenciesApiRouter from "./task-dependencies-api-router";

 import taskRecurringApiRouter from "./task-recurring-api-router";
-
+
+import customColumnsApiRouter from "./custom-columns-api-router";
+import holidayApiRouter from "./holiday-api-router";

 const api = express.Router();

@@ -117,4 +119,6 @@ api.use("/task-recurring", taskRecurringApiRouter);

 api.use("/custom-columns", customColumnsApiRouter);

+api.use("/holidays", holidayApiRouter);
+
 export default api;
--- a/worklenz-frontend/public/locales/en/admin-center/overview.json
+++ b/worklenz-frontend/public/locales/en/admin-center/overview.json
@@ -4,5 +4,33 @@
  "owner": "Organization Owner",
  "admins": "Organization Admins",
  "contactNumber": "Add Contact Number",
-  "edit": "Edit"
+  "edit": "Edit",
+  "holidayCalendar": "Holiday Calendar",
+  "addHoliday": "Add Holiday",
+  "editHoliday": "Edit Holiday",
+  "holidayName": "Holiday Name",
+  "holidayNameRequired": "Please enter holiday name",
+  "description": "Description",
+  "date": "Date",
+  "dateRequired": "Please select a date",
+  "holidayType": "Holiday Type",
+  "holidayTypeRequired": "Please select a holiday type",
+  "recurring": "Recurring",
+  "save": "Save",
+  "update": "Update",
+  "cancel": "Cancel",
+  "holidayCreated": "Holiday created successfully",
+  "holidayUpdated": "Holiday updated successfully",
+  "holidayDeleted": "Holiday deleted successfully",
+  "errorCreatingHoliday": "Error creating holiday",
+  "errorUpdatingHoliday": "Error updating holiday",
+  "errorDeletingHoliday": "Error deleting holiday",
+  "importCountryHolidays": "Import Country Holidays",
+  "country": "Country",
+  "countryRequired": "Please select a country",
+  "selectCountry": "Select a country",
+  "year": "Year",
+  "import": "Import",
+  "holidaysImported": "Successfully imported {{count}} holidays",
+  "errorImportingHolidays": "Error importing holidays"
 }
--- a/worklenz-frontend/src/api/holiday/holiday.api.service.ts
+++ b/worklenz-frontend/src/api/holiday/holiday.api.service.ts
@@ -0,0 +1,68 @@
+import { API_BASE_URL } from '@/shared/constants';
+import apiClient from '../api-client';
+import { IServerResponse } from '@/types/common.types';
+import {
+  IHolidayType,
+  IOrganizationHoliday,
+  ICountryHoliday,
+  IAvailableCountry,
+  ICreateHolidayRequest,
+  IUpdateHolidayRequest,
+  IImportCountryHolidaysRequest,
+  IHolidayCalendarEvent,
+} from '@/types/holiday/holiday.types';
+
+const rootUrl = `${API_BASE_URL}/holidays`;
+
+export const holidayApiService = {
+  // Holiday types
+  getHolidayTypes: async (): Promise<IServerResponse<IHolidayType[]>> => {
+    const response = await apiClient.get<IServerResponse<IHolidayType[]>>(`${rootUrl}/types`);
+    return response.data;
+  },
+
+  // Organization holidays
+  getOrganizationHolidays: async (year?: number): Promise<IServerResponse<IOrganizationHoliday[]>> => {
+    const params = year ? `?year=${year}` : '';
+    const response = await apiClient.get<IServerResponse<IOrganizationHoliday[]>>(`${rootUrl}/organization${params}`);
+    return response.data;
+  },
+
+  createOrganizationHoliday: async (data: ICreateHolidayRequest): Promise<IServerResponse<any>> => {
+    const response = await apiClient.post<IServerResponse<any>>(`${rootUrl}/organization`, data);
+    return response.data;
+  },
+
+  updateOrganizationHoliday: async (id: string, data: IUpdateHolidayRequest): Promise<IServerResponse<any>> => {
+    const response = await apiClient.put<IServerResponse<any>>(`${rootUrl}/organization/${id}`, data);
+    return response.data;
+  },
+
+  deleteOrganizationHoliday: async (id: string): Promise<IServerResponse<any>> => {
+    const response = await apiClient.delete<IServerResponse<any>>(`${rootUrl}/organization/${id}`);
+    return response.data;
+  },
+
+  // Country holidays
+  getAvailableCountries: async (): Promise<IServerResponse<IAvailableCountry[]>> => {
+    const response = await apiClient.get<IServerResponse<IAvailableCountry[]>>(`${rootUrl}/countries`);
+    return response.data;
+  },
+
+  getCountryHolidays: async (countryCode: string, year?: number): Promise<IServerResponse<ICountryHoliday[]>> => {
+    const params = year ? `?year=${year}` : '';
+    const response = await apiClient.get<IServerResponse<ICountryHoliday[]>>(`${rootUrl}/countries/${countryCode}${params}`);
+    return response.data;
+  },
+
+  importCountryHolidays: async (data: IImportCountryHolidaysRequest): Promise<IServerResponse<any>> => {
+    const response = await apiClient.post<IServerResponse<any>>(`${rootUrl}/import`, data);
+    return response.data;
+  },
+
+  // Calendar view
+  getHolidayCalendar: async (year: number, month: number): Promise<IServerResponse<IHolidayCalendarEvent[]>> => {
+    const response = await apiClient.get<IServerResponse<IHolidayCalendarEvent[]>>(`${rootUrl}/calendar?year=${year}&month=${month}`);
+    return response.data;
+  },
+}; 
--- a/worklenz-frontend/src/components/admin-center/overview/holiday-calendar/holiday-calendar.css
+++ b/worklenz-frontend/src/components/admin-center/overview/holiday-calendar/holiday-calendar.css
@@ -0,0 +1,270 @@
+.holiday-calendar {
+  width: 100%;
+}
+
+.holiday-calendar .ant-picker-calendar {
+  background: transparent;
+}
+
+.holiday-calendar .ant-picker-calendar-header {
+  padding: 12px 0;
+}
+
+.holiday-calendar .ant-picker-calendar-date {
+  position: relative;
+  height: 80px;
+  padding: 4px 8px;
+  border: 1px solid #f0f0f0;
+  border-radius: 6px;
+  transition: all 0.3s;
+}
+
+.holiday-calendar.dark .ant-picker-calendar-date {
+  border-color: #303030;
+  background: #1f1f1f;
+}
+
+.holiday-calendar .ant-picker-calendar-date:hover {
+  background: #f5f5f5;
+}
+
+.holiday-calendar.dark .ant-picker-calendar-date:hover {
+  background: #2a2a2a;
+}
+
+.holiday-calendar .ant-picker-calendar-date-value {
+  font-size: 12px;
+  font-weight: 500;
+  color: #262626;
+}
+
+.holiday-calendar.dark .ant-picker-calendar-date-value {
+  color: #ffffff;
+}
+
+.holiday-calendar .ant-picker-calendar-date-content {
+  height: 100%;
+  overflow: hidden;
+}
+
+.holiday-cell {
+  position: absolute;
+  bottom: 2px;
+  left: 2px;
+  right: 2px;
+  z-index: 1;
+}
+
+.holiday-cell .ant-tag {
+  max-width: 100%;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+  border: none;
+  font-weight: 500;
+}
+
+.holiday-calendar .ant-picker-calendar-date-today {
+  border-color: #1890ff;
+  background: #e6f7ff;
+}
+
+.holiday-calendar.dark .ant-picker-calendar-date-today {
+  border-color: #177ddc;
+  background: #111b26;
+}
+
+.holiday-calendar .ant-picker-calendar-date-selected {
+  border-color: #1890ff;
+  background: #e6f7ff;
+}
+
+.holiday-calendar.dark .ant-picker-calendar-date-selected {
+  border-color: #177ddc;
+  background: #111b26;
+}
+
+.holiday-calendar .ant-picker-calendar-date-other {
+  color: #bfbfbf;
+}
+
+.holiday-calendar.dark .ant-picker-calendar-date-other {
+  color: #595959;
+}
+
+.holiday-calendar .ant-picker-calendar-date-other .ant-picker-calendar-date-value {
+  color: #bfbfbf;
+}
+
+.holiday-calendar.dark .ant-picker-calendar-date-other .ant-picker-calendar-date-value {
+  color: #595959;
+}
+
+.holiday-calendar .ant-picker-calendar-mini {
+  border: 1px solid #f0f0f0;
+  border-radius: 6px;
+}
+
+.holiday-calendar.dark .ant-picker-calendar-mini {
+  border-color: #303030;
+  background: #1f1f1f;
+}
+
+.holiday-calendar .ant-picker-calendar-mini .ant-picker-calendar-date {
+  border: none;
+  border-radius: 0;
+}
+
+.holiday-calendar .ant-picker-calendar-mini .ant-picker-calendar-date:hover {
+  background: #f5f5f5;
+}
+
+.holiday-calendar.dark .ant-picker-calendar-mini .ant-picker-calendar-date:hover {
+  background: #2a2a2a;
+}
+
+/* Modal styles */
+.holiday-calendar .ant-modal-content {
+  border-radius: 8px;
+}
+
+.holiday-calendar.dark .ant-modal-content {
+  background: #1f1f1f;
+  border: 1px solid #303030;
+}
+
+.holiday-calendar.dark .ant-modal-header {
+  background: #1f1f1f;
+  border-bottom: 1px solid #303030;
+}
+
+.holiday-calendar.dark .ant-modal-title {
+  color: #ffffff;
+}
+
+.holiday-calendar.dark .ant-modal-close {
+  color: #ffffff;
+}
+
+.holiday-calendar.dark .ant-form-item-label > label {
+  color: #ffffff;
+}
+
+.holiday-calendar.dark .ant-input,
+.holiday-calendar.dark .ant-input-textarea {
+  background: #2a2a2a;
+  border-color: #434343;
+  color: #ffffff;
+}
+
+.holiday-calendar.dark .ant-input:focus,
+.holiday-calendar.dark .ant-input-textarea:focus {
+  border-color: #177ddc;
+  box-shadow: 0 0 0 2px rgba(23, 125, 220, 0.2);
+}
+
+.holiday-calendar.dark .ant-select-selector {
+  background: #2a2a2a !important;
+  border-color: #434343 !important;
+  color: #ffffff !important;
+}
+
+.holiday-calendar.dark .ant-select-focused .ant-select-selector {
+  border-color: #177ddc !important;
+  box-shadow: 0 0 0 2px rgba(23, 125, 220, 0.2) !important;
+}
+
+.holiday-calendar.dark .ant-picker {
+  background: #2a2a2a;
+  border-color: #434343;
+}
+
+.holiday-calendar.dark .ant-picker-input > input {
+  color: #ffffff;
+}
+
+.holiday-calendar.dark .ant-picker-focused {
+  border-color: #177ddc;
+  box-shadow: 0 0 0 2px rgba(23, 125, 220, 0.2);
+}
+
+/* Button styles */
+.holiday-calendar .ant-btn {
+  border-radius: 6px;
+  font-weight: 500;
+}
+
+.holiday-calendar.dark .ant-btn {
+  border-color: #434343;
+}
+
+.holiday-calendar.dark .ant-btn-primary {
+  background: #177ddc;
+  border-color: #177ddc;
+}
+
+.holiday-calendar.dark .ant-btn-primary:hover {
+  background: #1890ff;
+  border-color: #1890ff;
+}
+
+/* Card styles */
+.holiday-calendar .ant-card {
+  border-radius: 8px;
+  box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.03), 0 1px 6px -1px rgba(0, 0, 0, 0.02), 0 2px 4px 0 rgba(0, 0, 0, 0.02);
+}
+
+.holiday-calendar.dark .ant-card {
+  background: #1f1f1f;
+  border-color: #303030;
+}
+
+.holiday-calendar.dark .ant-card-head {
+  border-bottom-color: #303030;
+}
+
+.holiday-calendar.dark .ant-card-head-title {
+  color: #ffffff;
+}
+
+/* Typography styles */
+.holiday-calendar.dark .ant-typography {
+  color: #ffffff;
+}
+
+.holiday-calendar.dark .ant-typography h5 {
+  color: #ffffff;
+}
+
+/* Space styles */
+.holiday-calendar .ant-space {
+  gap: 8px !important;
+}
+
+/* Tag styles */
+.holiday-calendar .ant-tag {
+  border-radius: 4px;
+  font-size: 10px;
+  line-height: 1.2;
+  padding: 1px 4px;
+  margin: 0;
+  border: none;
+  font-weight: 500;
+}
+
+/* Responsive design */
+@media (max-width: 768px) {
+  .holiday-calendar .ant-picker-calendar-date {
+    height: 60px;
+    padding: 2px 4px;
+  }
+  
+  .holiday-calendar .ant-picker-calendar-date-value {
+    font-size: 11px;
+  }
+  
+  .holiday-cell .ant-tag {
+    font-size: 9px;
+    padding: 0 2px;
+  }
+} 
--- a/worklenz-frontend/src/components/admin-center/overview/holiday-calendar/holiday-calendar.tsx
+++ b/worklenz-frontend/src/components/admin-center/overview/holiday-calendar/holiday-calendar.tsx
@@ -0,0 +1,433 @@
+import React, { useEffect, useState } from 'react';
+import { Calendar, Card, Typography, Button, Modal, Form, Input, Select, DatePicker, Switch, Space, Tag, Popconfirm, message } from 'antd';
+import { PlusOutlined, DeleteOutlined, EditOutlined, GlobalOutlined } from '@ant-design/icons';
+import { useTranslation } from 'react-i18next';
+import dayjs, { Dayjs } from 'dayjs';
+import { holidayApiService } from '@/api/holiday/holiday.api.service';
+import {
+  IHolidayType,
+  IOrganizationHoliday,
+  IAvailableCountry,
+  ICreateHolidayRequest,
+  IUpdateHolidayRequest,
+} from '@/types/holiday/holiday.types';
+import logger from '@/utils/errorLogger';
+import './holiday-calendar.css';
+
+const { Title, Text } = Typography;
+const { Option } = Select;
+const { TextArea } = Input;
+
+interface HolidayCalendarProps {
+  themeMode: string;
+}
+
+const HolidayCalendar: React.FC<HolidayCalendarProps> = ({ themeMode }) => {
+  const { t } = useTranslation('admin-center/overview');
+  const [form] = Form.useForm();
+  const [editForm] = Form.useForm();
+
+  const [holidayTypes, setHolidayTypes] = useState<IHolidayType[]>([]);
+  const [organizationHolidays, setOrganizationHolidays] = useState<IOrganizationHoliday[]>([]);
+  const [availableCountries, setAvailableCountries] = useState<IAvailableCountry[]>([]);
+  const [loading, setLoading] = useState(false);
+  const [modalVisible, setModalVisible] = useState(false);
+  const [editModalVisible, setEditModalVisible] = useState(false);
+  const [importModalVisible, setImportModalVisible] = useState(false);
+  const [selectedHoliday, setSelectedHoliday] = useState<IOrganizationHoliday | null>(null);
+  const [currentDate, setCurrentDate] = useState<Dayjs>(dayjs());
+
+  const fetchHolidayTypes = async () => {
+    try {
+      const res = await holidayApiService.getHolidayTypes();
+      if (res.done) {
+        setHolidayTypes(res.body);
+      }
+    } catch (error) {
+      logger.error('Error fetching holiday types', error);
+    }
+  };
+
+  const fetchOrganizationHolidays = async () => {
+    setLoading(true);
+    try {
+      const res = await holidayApiService.getOrganizationHolidays(currentDate.year());
+      if (res.done) {
+        setOrganizationHolidays(res.body);
+      }
+    } catch (error) {
+      logger.error('Error fetching organization holidays', error);
+    } finally {
+      setLoading(false);
+    }
+  };
+
+  const fetchAvailableCountries = async () => {
+    try {
+      const res = await holidayApiService.getAvailableCountries();
+      if (res.done) {
+        setAvailableCountries(res.body);
+      }
+    } catch (error) {
+      logger.error('Error fetching available countries', error);
+    }
+  };
+
+  useEffect(() => {
+    fetchHolidayTypes();
+    fetchOrganizationHolidays();
+    fetchAvailableCountries();
+  }, [currentDate.year()]);
+
+  const handleCreateHoliday = async (values: any) => {
+    try {
+      const holidayData: ICreateHolidayRequest = {
+        name: values.name,
+        description: values.description,
+        date: values.date.format('YYYY-MM-DD'),
+        holiday_type_id: values.holiday_type_id,
+        is_recurring: values.is_recurring || false,
+      };
+
+      const res = await holidayApiService.createOrganizationHoliday(holidayData);
+      if (res.done) {
+        message.success(t('holidayCreated'));
+        setModalVisible(false);
+        form.resetFields();
+        fetchOrganizationHolidays();
+      }
+    } catch (error) {
+      logger.error('Error creating holiday', error);
+      message.error(t('errorCreatingHoliday'));
+    }
+  };
+
+  const handleUpdateHoliday = async (values: any) => {
+    if (!selectedHoliday) return;
+
+    try {
+      const holidayData: IUpdateHolidayRequest = {
+        id: selectedHoliday.id,
+        name: values.name,
+        description: values.description,
+        date: values.date?.format('YYYY-MM-DD'),
+        holiday_type_id: values.holiday_type_id,
+        is_recurring: values.is_recurring,
+      };
+
+      const res = await holidayApiService.updateOrganizationHoliday(selectedHoliday.id, holidayData);
+      if (res.done) {
+        message.success(t('holidayUpdated'));
+        setEditModalVisible(false);
+        editForm.resetFields();
+        setSelectedHoliday(null);
+        fetchOrganizationHolidays();
+      }
+    } catch (error) {
+      logger.error('Error updating holiday', error);
+      message.error(t('errorUpdatingHoliday'));
+    }
+  };
+
+  const handleDeleteHoliday = async (holidayId: string) => {
+    try {
+      const res = await holidayApiService.deleteOrganizationHoliday(holidayId);
+      if (res.done) {
+        message.success(t('holidayDeleted'));
+        fetchOrganizationHolidays();
+      }
+    } catch (error) {
+      logger.error('Error deleting holiday', error);
+      message.error(t('errorDeletingHoliday'));
+    }
+  };
+
+  const handleImportCountryHolidays = async (values: any) => {
+    try {
+      const res = await holidayApiService.importCountryHolidays({
+        country_code: values.country_code,
+        year: values.year || currentDate.year(),
+      });
+      if (res.done) {
+        message.success(t('holidaysImported', { count: res.body.imported_count }));
+        setImportModalVisible(false);
+        fetchOrganizationHolidays();
+      }
+    } catch (error) {
+      logger.error('Error importing country holidays', error);
+      message.error(t('errorImportingHolidays'));
+    }
+  };
+
+  const handleEditHoliday = (holiday: IOrganizationHoliday) => {
+    setSelectedHoliday(holiday);
+    editForm.setFieldsValue({
+      name: holiday.name,
+      description: holiday.description,
+      date: dayjs(holiday.date),
+      holiday_type_id: holiday.holiday_type_id,
+      is_recurring: holiday.is_recurring,
+    });
+    setEditModalVisible(true);
+  };
+
+  const getHolidayDateCellRender = (date: Dayjs) => {
+    const holiday = organizationHolidays.find(h => dayjs(h.date).isSame(date, 'day'));
+    
+    if (holiday) {
+      const holidayType = holidayTypes.find(ht => ht.id === holiday.holiday_type_id);
+      return (
+        <div className="holiday-cell">
+          <Tag 
+            color={holidayType?.color_code || '#f37070'}
+            style={{ 
+              fontSize: '10px', 
+              padding: '1px 4px',
+              margin: 0,
+              borderRadius: '2px'
+            }}
+          >
+            {holiday.name}
+          </Tag>
+        </div>
+      );
+    }
+    return null;
+  };
+
+  const onPanelChange = (value: Dayjs) => {
+    setCurrentDate(value);
+  };
+
+  return (
+    <Card>
+      <div style={{ display: 'flex', justifyContent: 'space-between', alignItems: 'center', marginBottom: 16 }}>
+        <Title level={5} style={{ margin: 0 }}>
+          {t('holidayCalendar')}
+        </Title>
+        <Space>
+          <Button 
+            icon={<GlobalOutlined />} 
+            onClick={() => setImportModalVisible(true)}
+            size="small"
+          >
+            {t('importCountryHolidays')}
+          </Button>
+          <Button 
+            type="primary" 
+            icon={<PlusOutlined />} 
+            onClick={() => setModalVisible(true)}
+            size="small"
+          >
+            {t('addHoliday')}
+          </Button>
+        </Space>
+      </div>
+
+      <Calendar
+        value={currentDate}
+        onPanelChange={onPanelChange}
+        dateCellRender={getHolidayDateCellRender}
+        className={`holiday-calendar ${themeMode}`}
+      />
+
+      {/* Create Holiday Modal */}
+      <Modal
+        title={t('addHoliday')}
+        open={modalVisible}
+        onCancel={() => {
+          setModalVisible(false);
+          form.resetFields();
+        }}
+        footer={null}
+        destroyOnClose
+      >
+        <Form form={form} layout="vertical" onFinish={handleCreateHoliday}>
+          <Form.Item
+            name="name"
+            label={t('holidayName')}
+            rules={[{ required: true, message: t('holidayNameRequired') }]}
+          >
+            <Input />
+          </Form.Item>
+
+          <Form.Item name="description" label={t('description')}>
+            <TextArea rows={3} />
+          </Form.Item>
+
+          <Form.Item
+            name="date"
+            label={t('date')}
+            rules={[{ required: true, message: t('dateRequired') }]}
+          >
+            <DatePicker style={{ width: '100%' }} />
+          </Form.Item>
+
+          <Form.Item
+            name="holiday_type_id"
+            label={t('holidayType')}
+            rules={[{ required: true, message: t('holidayTypeRequired') }]}
+          >
+            <Select>
+              {holidayTypes.map(type => (
+                <Option key={type.id} value={type.id}>
+                  <div style={{ display: 'flex', alignItems: 'center' }}>
+                    <div 
+                      style={{ 
+                        width: 12, 
+                        height: 12, 
+                        borderRadius: '50%', 
+                        backgroundColor: type.color_code,
+                        marginRight: 8
+                      }} 
+                    />
+                    {type.name}
+                  </div>
+                </Option>
+              ))}
+            </Select>
+          </Form.Item>
+
+          <Form.Item name="is_recurring" label={t('recurring')} valuePropName="checked">
+            <Switch />
+          </Form.Item>
+
+          <Form.Item>
+            <Space>
+              <Button type="primary" htmlType="submit">
+                {t('save')}
+              </Button>
+              <Button onClick={() => {
+                setModalVisible(false);
+                form.resetFields();
+              }}>
+                {t('cancel')}
+              </Button>
+            </Space>
+          </Form.Item>
+        </Form>
+      </Modal>
+
+      {/* Edit Holiday Modal */}
+      <Modal
+        title={t('editHoliday')}
+        open={editModalVisible}
+        onCancel={() => {
+          setEditModalVisible(false);
+          editForm.resetFields();
+          setSelectedHoliday(null);
+        }}
+        footer={null}
+        destroyOnClose
+      >
+        <Form form={editForm} layout="vertical" onFinish={handleUpdateHoliday}>
+          <Form.Item
+            name="name"
+            label={t('holidayName')}
+            rules={[{ required: true, message: t('holidayNameRequired') }]}
+          >
+            <Input />
+          </Form.Item>
+
+          <Form.Item name="description" label={t('description')}>
+            <TextArea rows={3} />
+          </Form.Item>
+
+          <Form.Item
+            name="date"
+            label={t('date')}
+            rules={[{ required: true, message: t('dateRequired') }]}
+          >
+            <DatePicker style={{ width: '100%' }} />
+          </Form.Item>
+
+          <Form.Item
+            name="holiday_type_id"
+            label={t('holidayType')}
+            rules={[{ required: true, message: t('holidayTypeRequired') }]}
+          >
+            <Select>
+              {holidayTypes.map(type => (
+                <Option key={type.id} value={type.id}>
+                  <div style={{ display: 'flex', alignItems: 'center' }}>
+                    <div 
+                      style={{ 
+                        width: 12, 
+                        height: 12, 
+                        borderRadius: '50%', 
+                        backgroundColor: type.color_code,
+                        marginRight: 8
+                      }} 
+                    />
+                    {type.name}
+                  </div>
+                </Option>
+              ))}
+            </Select>
+          </Form.Item>
+
+          <Form.Item name="is_recurring" label={t('recurring')} valuePropName="checked">
+            <Switch />
+          </Form.Item>
+
+          <Form.Item>
+            <Space>
+              <Button type="primary" htmlType="submit">
+                {t('update')}
+              </Button>
+              <Button onClick={() => {
+                setEditModalVisible(false);
+                editForm.resetFields();
+                setSelectedHoliday(null);
+              }}>
+                {t('cancel')}
+              </Button>
+            </Space>
+          </Form.Item>
+        </Form>
+      </Modal>
+
+      {/* Import Country Holidays Modal */}
+      <Modal
+        title={t('importCountryHolidays')}
+        open={importModalVisible}
+        onCancel={() => setImportModalVisible(false)}
+        footer={null}
+        destroyOnClose
+      >
+        <Form layout="vertical" onFinish={handleImportCountryHolidays}>
+          <Form.Item
+            name="country_code"
+            label={t('country')}
+            rules={[{ required: true, message: t('countryRequired') }]}
+          >
+            <Select placeholder={t('selectCountry')}>
+              {availableCountries.map(country => (
+                <Option key={country.code} value={country.code}>
+                  {country.name}
+                </Option>
+              ))}
+            </Select>
+          </Form.Item>
+
+          <Form.Item name="year" label={t('year')}>
+            <DatePicker picker="year" style={{ width: '100%' }} />
+          </Form.Item>
+
+          <Form.Item>
+            <Space>
+              <Button type="primary" htmlType="submit">
+                {t('import')}
+              </Button>
+              <Button onClick={() => setImportModalVisible(false)}>
+                {t('cancel')}
+              </Button>
+            </Space>
+          </Form.Item>
+        </Form>
+      </Modal>
+    </Card>
+  );
+};
+
+export default HolidayCalendar; 
--- a/worklenz-frontend/src/pages/admin-center/overview/overview.tsx
+++ b/worklenz-frontend/src/pages/admin-center/overview/overview.tsx
@@ -8,10 +8,10 @@ import { RootState } from '@/app/store';
 import { useTranslation } from 'react-i18next';
 import OrganizationName from '@/components/admin-center/overview/organization-name/organization-name';
 import OrganizationOwner from '@/components/admin-center/overview/organization-owner/organization-owner';
+import HolidayCalendar from '@/components/admin-center/overview/holiday-calendar/holiday-calendar';
 import { adminCenterApiService } from '@/api/admin-center/admin-center.api.service';
 import { IOrganization, IOrganizationAdmin } from '@/types/admin-center/admin-center.types';
 import logger from '@/utils/errorLogger';
-import { tr } from 'date-fns/locale';

 const { Text } = Typography;

@@ -82,6 +82,8 @@ const Overview: React.FC = () => {
            themeMode={themeMode}
          />
        </Card>
+
+        <HolidayCalendar themeMode={themeMode} />
      </Space>
    </div>
  );
--- a/worklenz-frontend/src/types/holiday/holiday.types.ts
+++ b/worklenz-frontend/src/types/holiday/holiday.types.ts
@@ -0,0 +1,71 @@
+export interface IHolidayType {
+  id: string;
+  name: string;
+  description?: string;
+  color_code: string;
+  created_at: string;
+  updated_at: string;
+}
+
+export interface IOrganizationHoliday {
+  id: string;
+  organization_id: string;
+  holiday_type_id: string;
+  name: string;
+  description?: string;
+  date: string;
+  is_recurring: boolean;
+  created_at: string;
+  updated_at: string;
+  holiday_type_name?: string;
+  color_code?: string;
+}
+
+export interface ICountryHoliday {
+  id: string;
+  country_code: string;
+  name: string;
+  description?: string;
+  date: string;
+  is_recurring: boolean;
+  created_at: string;
+  updated_at: string;
+}
+
+export interface IAvailableCountry {
+  code: string;
+  name: string;
+}
+
+export interface ICreateHolidayRequest {
+  name: string;
+  description?: string;
+  date: string;
+  holiday_type_id: string;
+  is_recurring?: boolean;
+}
+
+export interface IUpdateHolidayRequest {
+  id: string;
+  name?: string;
+  description?: string;
+  date?: string;
+  holiday_type_id?: string;
+  is_recurring?: boolean;
+}
+
+export interface IImportCountryHolidaysRequest {
+  country_code: string;
+  year?: number;
+}
+
+export interface IHolidayCalendarEvent {
+  id: string;
+  name: string;
+  description?: string;
+  date: string;
+  is_recurring: boolean;
+  holiday_type_name: string;
+  color_code: string;
+  source: 'organization' | 'country';
+}