feat(holiday-settings): implement organization holiday settings management

- Added SQL migration for creating organization holiday settings and state holidays tables with necessary constraints and indexes. - Implemented API endpoints in AdminCenterController for retrieving and updating organization holiday settings. - Updated admin-center API router to include routes for holiday settings management. - Enhanced localization files to support new holiday settings UI elements in multiple languages. - Improved holiday calendar component to display working days and integrate holiday settings.
2025-07-28 13:07:15 +05:30
parent c18b289e4f
commit f81d0f9594
21 changed files with 1265 additions and 207 deletions
--- a/worklenz-backend/database/migrations/20250728000000-add-organization-holiday-settings.sql
+++ b/worklenz-backend/database/migrations/20250728000000-add-organization-holiday-settings.sql
@@ -0,0 +1,63 @@
+-- Create organization holiday settings table
+CREATE TABLE IF NOT EXISTS organization_holiday_settings (
+    id              UUID                     DEFAULT uuid_generate_v4() NOT NULL,
+    organization_id UUID                                                NOT NULL,
+    country_code    CHAR(2),
+    state_code      TEXT,
+    auto_sync_holidays 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 organization_holiday_settings
+    ADD CONSTRAINT organization_holiday_settings_pk
+        PRIMARY KEY (id);
+
+ALTER TABLE organization_holiday_settings
+    ADD CONSTRAINT organization_holiday_settings_organization_id_fk
+        FOREIGN KEY (organization_id) REFERENCES organizations
+            ON DELETE CASCADE;
+
+ALTER TABLE organization_holiday_settings
+    ADD CONSTRAINT organization_holiday_settings_country_code_fk
+        FOREIGN KEY (country_code) REFERENCES countries(code)
+            ON DELETE SET NULL;
+
+-- Ensure one settings record per organization
+ALTER TABLE organization_holiday_settings
+    ADD CONSTRAINT organization_holiday_settings_organization_unique
+        UNIQUE (organization_id);
+
+-- Create index for better performance
+CREATE INDEX IF NOT EXISTS idx_organization_holiday_settings_organization_id ON organization_holiday_settings(organization_id);
+
+-- Add state holidays table for more granular holiday data
+CREATE TABLE IF NOT EXISTS state_holidays (
+    id          UUID                     DEFAULT uuid_generate_v4() NOT NULL,
+    country_code CHAR(2)                                            NOT NULL,
+    state_code  TEXT                                                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 state_holidays
+    ADD CONSTRAINT state_holidays_pk
+        PRIMARY KEY (id);
+
+ALTER TABLE state_holidays
+    ADD CONSTRAINT state_holidays_country_code_fk
+        FOREIGN KEY (country_code) REFERENCES countries(code)
+            ON DELETE CASCADE;
+
+-- Add unique constraint to prevent duplicate holidays for the same state, name, and date
+ALTER TABLE state_holidays
+    ADD CONSTRAINT state_holidays_state_name_date_unique
+        UNIQUE (country_code, state_code, name, date);
+
+-- Create indexes for better performance
+CREATE INDEX IF NOT EXISTS idx_state_holidays_country_state ON state_holidays(country_code, state_code);
+CREATE INDEX IF NOT EXISTS idx_state_holidays_date ON state_holidays(date);
--- a/worklenz-backend/src/controllers/admin-center-controller.ts
+++ b/worklenz-backend/src/controllers/admin-center-controller.ts
@@ -1119,4 +1119,115 @@ export default class AdminCenterController extends WorklenzControllerBase {

    return res.status(200).send(new ServerResponse(true, response));
  }
+
+  @HandleExceptions()
+  public static async getOrganizationHolidaySettings(
+    req: IWorkLenzRequest,
+    res: IWorkLenzResponse
+  ): Promise<IWorkLenzResponse> {
+    const q = `SELECT ohs.id, ohs.organization_id, ohs.country_code, ohs.state_code, 
+                      ohs.auto_sync_holidays, ohs.created_at, ohs.updated_at
+               FROM organization_holiday_settings ohs
+               JOIN organizations o ON ohs.organization_id = o.id
+               WHERE o.user_id = $1;`;
+    
+    const result = await db.query(q, [req.user?.owner_id]);
+    
+    // If no settings exist, return default settings
+    if (result.rows.length === 0) {
+      return res.status(200).send(new ServerResponse(true, {
+        country_code: null,
+        state_code: null,
+        auto_sync_holidays: true
+      }));
+    }
+    
+    return res.status(200).send(new ServerResponse(true, result.rows[0]));
+  }
+
+  @HandleExceptions()
+  public static async updateOrganizationHolidaySettings(
+    req: IWorkLenzRequest,
+    res: IWorkLenzResponse
+  ): Promise<IWorkLenzResponse> {
+    const { country_code, state_code, auto_sync_holidays } = req.body;
+
+    // First, get the organization ID
+    const orgQ = `SELECT id FROM organizations WHERE user_id = $1;`;
+    const orgResult = await db.query(orgQ, [req.user?.owner_id]);
+    
+    if (orgResult.rows.length === 0) {
+      return res.status(404).send(new ServerResponse(false, "Organization not found"));
+    }
+    
+    const organizationId = orgResult.rows[0].id;
+
+    // Check if settings already exist
+    const checkQ = `SELECT id FROM organization_holiday_settings WHERE organization_id = $1;`;
+    const checkResult = await db.query(checkQ, [organizationId]);
+
+    let result;
+    if (checkResult.rows.length > 0) {
+      // Update existing settings
+      const updateQ = `UPDATE organization_holiday_settings 
+                       SET country_code = $2, 
+                           state_code = $3, 
+                           auto_sync_holidays = $4,
+                           updated_at = CURRENT_TIMESTAMP
+                       WHERE organization_id = $1
+                       RETURNING *;`;
+      result = await db.query(updateQ, [organizationId, country_code, state_code, auto_sync_holidays]);
+    } else {
+      // Insert new settings
+      const insertQ = `INSERT INTO organization_holiday_settings 
+                       (organization_id, country_code, state_code, auto_sync_holidays)
+                       VALUES ($1, $2, $3, $4)
+                       RETURNING *;`;
+      result = await db.query(insertQ, [organizationId, country_code, state_code, auto_sync_holidays]);
+    }
+
+    return res.status(200).send(new ServerResponse(true, result.rows[0]));
+  }
+
+  @HandleExceptions()
+  public static async getCountriesWithStates(
+    req: IWorkLenzRequest,
+    res: IWorkLenzResponse
+  ): Promise<IWorkLenzResponse> {
+    // Get all countries
+    const countriesQ = `SELECT code, name FROM countries ORDER BY name;`;
+    const countriesResult = await db.query(countriesQ);
+    
+    // For now, we'll return a basic structure
+    // In a real implementation, you would have a states table
+    const countriesWithStates = countriesResult.rows.map(country => ({
+      code: country.code,
+      name: country.name,
+      states: [] as Array<{ code: string; name: string }> // Would be populated from a states table
+    }));
+
+    // Add some example states for US and Canada
+    const usIndex = countriesWithStates.findIndex(c => c.code === 'US');
+    if (usIndex !== -1) {
+      countriesWithStates[usIndex].states = [
+        { code: 'CA', name: 'California' },
+        { code: 'NY', name: 'New York' },
+        { code: 'TX', name: 'Texas' },
+        { code: 'FL', name: 'Florida' },
+        { code: 'WA', name: 'Washington' }
+      ];
+    }
+
+    const caIndex = countriesWithStates.findIndex(c => c.code === 'CA');
+    if (caIndex !== -1) {
+      countriesWithStates[caIndex].states = [
+        { code: 'ON', name: 'Ontario' },
+        { code: 'QC', name: 'Quebec' },
+        { code: 'BC', name: 'British Columbia' },
+        { code: 'AB', name: 'Alberta' }
+      ];
+    }
+
+    return res.status(200).send(new ServerResponse(true, countriesWithStates));
+  }
 }
--- a/worklenz-backend/src/routes/apis/admin-center-api-router.ts
+++ b/worklenz-backend/src/routes/apis/admin-center-api-router.ts
@@ -14,6 +14,11 @@ adminCenterApiRouter.put("/organization", teamOwnerOrAdminValidator, organizatio
 adminCenterApiRouter.put("/organization/calculation-method", teamOwnerOrAdminValidator, safeControllerFunction(AdminCenterController.updateOrganizationCalculationMethod));
 adminCenterApiRouter.put("/organization/owner/contact-number", teamOwnerOrAdminValidator, safeControllerFunction(AdminCenterController.updateOwnerContactNumber));

+// holiday settings
+adminCenterApiRouter.get("/organization/holiday-settings", teamOwnerOrAdminValidator, safeControllerFunction(AdminCenterController.getOrganizationHolidaySettings));
+adminCenterApiRouter.put("/organization/holiday-settings", teamOwnerOrAdminValidator, safeControllerFunction(AdminCenterController.updateOrganizationHolidaySettings));
+adminCenterApiRouter.get("/countries-with-states", teamOwnerOrAdminValidator, safeControllerFunction(AdminCenterController.getCountriesWithStates));
+
 // users
 adminCenterApiRouter.get("/organization/users", teamOwnerOrAdminValidator, safeControllerFunction(AdminCenterController.getOrganizationUsers));

--- a/worklenz-frontend/public/locales/alb/admin-center/overview.json
+++ b/worklenz-frontend/public/locales/alb/admin-center/overview.json
@@ -28,5 +28,45 @@
  "manDaysCalculationDescription": "Të gjitha kostot e projektit do të llogariten duke përdorur ditët e vlerësuara të njeriut × normat ditore",
  "calculationMethodTooltip": "Ky cilësim zbatohet për të gjitha projektet në organizatën tuaj",
  "calculationMethodUpdated": "Metoda e llogaritjes së organizatës u përditësua me sukses",
-  "calculationMethodUpdateError": "Dështoi përditësimi i metodës së llogaritjes"
+  "calculationMethodUpdateError": "Dështoi përditësimi i metodës së llogaritjes",
+  "holidayCalendar": "Kalnedari i Festave",
+  "addHoliday": "Shto Festë",
+  "editHoliday": "Redakto Festë",
+  "holidayName": "Emri i Festës",
+  "holidayNameRequired": "Ju lutemi shkruani emrin e festës",
+  "description": "Përshkrim",
+  "date": "Data",
+  "dateRequired": "Ju lutemi zgjidhni një datë",
+  "holidayType": "Lloji i Festës",
+  "holidayTypeRequired": "Ju lutemi zgjidhni një lloj feste",
+  "recurring": "Përsëritëse",
+  "save": "Ruaj",
+  "update": "Përditëso",
+  "cancel": "Anulo",
+  "holidayCreated": "Festa u krijua me sukses",
+  "holidayUpdated": "Festa u përditësua me sukses",
+  "holidayDeleted": "Festa u fshi me sukses",
+  "errorCreatingHoliday": "Gabim gjatë krijimit të festës",
+  "errorUpdatingHoliday": "Gabim gjatë përditësimit të festës",
+  "errorDeletingHoliday": "Gabim gjatë fshirjes së festës",
+  "importCountryHolidays": "Importo Festat e Vendit",
+  "country": "Vendi",
+  "countryRequired": "Ju lutemi zgjidhni një vend",
+  "selectCountry": "Zgjidhni një vend",
+  "year": "Viti",
+  "import": "Importo",
+  "holidaysImported": "U importuan me sukses {{count}} festa",
+  "errorImportingHolidays": "Gabim gjatë importimit të festave",
+  "addCustomHoliday": "Shto Festë të Përshtatur",
+  "officialHolidaysFrom": "Festat zyrtare nga",
+  "workingDay": "Ditë Pune",
+  "holiday": "Festë",
+  "today": "Sot",
+  "cannotEditOfficialHoliday": "Nuk mund të redaktoni festat zyrtare",
+  "customHoliday": "Festë e Përshtatur",
+  "officialHoliday": "Festë Zyrtare",
+  "delete": "Fshi",
+  "deleteHolidayConfirm": "A jeni i sigurt që dëshironi të fshini këtë festë?",
+  "yes": "Po",
+  "no": "Jo"
 }
--- a/worklenz-frontend/public/locales/alb/admin-center/settings.json
+++ b/worklenz-frontend/public/locales/alb/admin-center/settings.json
@@ -13,5 +13,21 @@
  "sunday": "E Dielë",
  "saveButton": "Ruaj",
  "saved": "Cilësimet u ruajtën me sukses",
-  "errorSaving": "Gabim gjatë ruajtjes së cilësimeve"
+  "errorSaving": "Gabim gjatë ruajtjes së cilësimeve",
+  "holidaySettings": "Cilësimet e pushimeve",
+  "country": "Vendi",
+  "countryRequired": "Ju lutemi zgjidhni një vend",
+  "selectCountry": "Zgjidhni vendin",
+  "state": "Shteti/Provinca",
+  "selectState": "Zgjidhni shtetin/provincën (opsionale)",
+  "autoSyncHolidays": "Sinkronizo automatikisht pushimet zyrtare",
+  "saveHolidaySettings": "Ruaj cilësimet e pushimeve",
+  "holidaySettingsSaved": "Cilësimet e pushimeve u ruajtën me sukses",
+  "errorSavingHolidaySettings": "Gabim gjatë ruajtjes së cilësimeve të pushimeve",
+  "addCustomHoliday": "Shto Festë të Përshtatur",
+  "officialHolidaysFrom": "Festat zyrtare nga",
+  "workingDay": "Ditë Pune",
+  "holiday": "Festë",
+  "today": "Sot",
+  "cannotEditOfficialHoliday": "Nuk mund të redaktoni festat zyrtare"
 }
--- a/worklenz-frontend/public/locales/de/admin-center/overview.json
+++ b/worklenz-frontend/public/locales/de/admin-center/overview.json
@@ -28,5 +28,45 @@
  "manDaysCalculationDescription": "Alle Projektkosten werden anhand geschätzter Mann-Tage × Tagessätze berechnet",
  "calculationMethodTooltip": "Diese Einstellung gilt für alle Projekte in Ihrer Organisation",
  "calculationMethodUpdated": "Organisations-Berechnungsmethode erfolgreich aktualisiert",
-  "calculationMethodUpdateError": "Fehler beim Aktualisieren der Berechnungsmethode"
+  "calculationMethodUpdateError": "Fehler beim Aktualisieren der Berechnungsmethode",
+  "holidayCalendar": "Feiertagskalender",
+  "addHoliday": "Feiertag hinzufügen",
+  "editHoliday": "Feiertag bearbeiten",
+  "holidayName": "Feiertagsname",
+  "holidayNameRequired": "Bitte geben Sie den Feiertagsnamen ein",
+  "description": "Beschreibung",
+  "date": "Datum",
+  "dateRequired": "Bitte wählen Sie ein Datum aus",
+  "holidayType": "Feiertagstyp",
+  "holidayTypeRequired": "Bitte wählen Sie einen Feiertagstyp aus",
+  "recurring": "Wiederkehrend",
+  "save": "Speichern",
+  "update": "Aktualisieren",
+  "cancel": "Abbrechen",
+  "holidayCreated": "Feiertag erfolgreich erstellt",
+  "holidayUpdated": "Feiertag erfolgreich aktualisiert",
+  "holidayDeleted": "Feiertag erfolgreich gelöscht",
+  "errorCreatingHoliday": "Fehler beim Erstellen des Feiertags",
+  "errorUpdatingHoliday": "Fehler beim Aktualisieren des Feiertags",
+  "errorDeletingHoliday": "Fehler beim Löschen des Feiertags",
+  "importCountryHolidays": "Landesfeiertage importieren",
+  "country": "Land",
+  "countryRequired": "Bitte wählen Sie ein Land aus",
+  "selectCountry": "Ein Land auswählen",
+  "year": "Jahr",
+  "import": "Importieren",
+  "holidaysImported": "{{count}} Feiertage erfolgreich importiert",
+  "errorImportingHolidays": "Fehler beim Importieren der Feiertage",
+  "addCustomHoliday": "Benutzerdefinierten Feiertag hinzufügen",
+  "officialHolidaysFrom": "Offizielle Feiertage aus",
+  "workingDay": "Arbeitstag",
+  "holiday": "Feiertag",
+  "today": "Heute",
+  "cannotEditOfficialHoliday": "Offizielle Feiertage können nicht bearbeitet werden",
+  "customHoliday": "Benutzerdefinierter Feiertag",
+  "officialHoliday": "Offizieller Feiertag",
+  "delete": "Löschen",
+  "deleteHolidayConfirm": "Sind Sie sicher, dass Sie diesen Feiertag löschen möchten?",
+  "yes": "Ja",
+  "no": "Nein"
 }
--- a/worklenz-frontend/public/locales/de/admin-center/settings.json
+++ b/worklenz-frontend/public/locales/de/admin-center/settings.json
@@ -13,5 +13,21 @@
  "sunday": "Sonntag",
  "saveButton": "Speichern",
  "saved": "Einstellungen erfolgreich gespeichert",
-  "errorSaving": "Fehler beim Speichern der Einstellungen"
+  "errorSaving": "Fehler beim Speichern der Einstellungen",
+  "holidaySettings": "Feiertagseinstellungen",
+  "country": "Land",
+  "countryRequired": "Bitte wählen Sie ein Land aus",
+  "selectCountry": "Land auswählen",
+  "state": "Bundesland/Provinz",
+  "selectState": "Bundesland/Provinz auswählen (optional)",
+  "autoSyncHolidays": "Offizielle Feiertage automatisch synchronisieren",
+  "saveHolidaySettings": "Feiertagseinstellungen speichern",
+  "holidaySettingsSaved": "Feiertagseinstellungen erfolgreich gespeichert",
+  "errorSavingHolidaySettings": "Fehler beim Speichern der Feiertagseinstellungen",
+  "addCustomHoliday": "Benutzerdefinierten Feiertag hinzufügen",
+  "officialHolidaysFrom": "Offizielle Feiertage aus",
+  "workingDay": "Arbeitstag",
+  "holiday": "Feiertag",
+  "today": "Heute",
+  "cannotEditOfficialHoliday": "Offizielle Feiertage können nicht bearbeitet werden"
 }
--- a/worklenz-frontend/public/locales/en/admin-center/overview.json
+++ b/worklenz-frontend/public/locales/en/admin-center/overview.json
@@ -56,5 +56,17 @@
  "year": "Year",
  "import": "Import",
  "holidaysImported": "Successfully imported {{count}} holidays",
-  "errorImportingHolidays": "Error importing holidays"
+  "errorImportingHolidays": "Error importing holidays",
+  "addCustomHoliday": "Add Custom Holiday",
+  "officialHolidaysFrom": "Official holidays from",
+  "workingDay": "Working Day",
+  "holiday": "Holiday",
+  "today": "Today",
+  "cannotEditOfficialHoliday": "Cannot edit official holidays",
+  "customHoliday": "Custom Holiday",
+  "officialHoliday": "Official Holiday",
+  "delete": "Delete",
+  "deleteHolidayConfirm": "Are you sure you want to delete this holiday?",
+  "yes": "Yes",
+  "no": "No"
 }
--- a/worklenz-frontend/public/locales/en/admin-center/settings.json
+++ b/worklenz-frontend/public/locales/en/admin-center/settings.json
@@ -13,5 +13,15 @@
  "sunday": "Sunday",
  "saveButton": "Save",
  "saved": "Settings saved successfully",
-  "errorSaving": "Error saving settings"
+  "errorSaving": "Error saving settings",
+  "holidaySettings": "Holiday Settings",
+  "country": "Country",
+  "countryRequired": "Please select a country",
+  "selectCountry": "Select country",
+  "state": "State/Province",
+  "selectState": "Select state/province (optional)",
+  "autoSyncHolidays": "Automatically sync official holidays",
+  "saveHolidaySettings": "Save Holiday Settings",
+  "holidaySettingsSaved": "Holiday settings saved successfully",
+  "errorSavingHolidaySettings": "Error saving holiday settings"
 }
--- a/worklenz-frontend/public/locales/es/admin-center/overview.json
+++ b/worklenz-frontend/public/locales/es/admin-center/overview.json
@@ -28,5 +28,45 @@
  "manDaysCalculationDescription": "Todos los costos del proyecto se calcularán usando días hombre estimados × tarifas diarias",
  "calculationMethodTooltip": "Esta configuración se aplica a todos los proyectos en su organización",
  "calculationMethodUpdated": "Método de cálculo de la organización actualizado exitosamente",
-  "calculationMethodUpdateError": "Error al actualizar el método de cálculo"
+  "calculationMethodUpdateError": "Error al actualizar el método de cálculo",
+  "holidayCalendar": "Calendario de Días Festivos",
+  "addHoliday": "Agregar Día Festivo",
+  "editHoliday": "Editar Día Festivo",
+  "holidayName": "Nombre del Día Festivo",
+  "holidayNameRequired": "Por favor ingrese el nombre del día festivo",
+  "description": "Descripción",
+  "date": "Fecha",
+  "dateRequired": "Por favor seleccione una fecha",
+  "holidayType": "Tipo de Día Festivo",
+  "holidayTypeRequired": "Por favor seleccione un tipo de día festivo",
+  "recurring": "Recurrente",
+  "save": "Guardar",
+  "update": "Actualizar",
+  "cancel": "Cancelar",
+  "holidayCreated": "Día festivo creado exitosamente",
+  "holidayUpdated": "Día festivo actualizado exitosamente",
+  "holidayDeleted": "Día festivo eliminado exitosamente",
+  "errorCreatingHoliday": "Error al crear el día festivo",
+  "errorUpdatingHoliday": "Error al actualizar el día festivo",
+  "errorDeletingHoliday": "Error al eliminar el día festivo",
+  "importCountryHolidays": "Importar Días Festivos del País",
+  "country": "País",
+  "countryRequired": "Por favor seleccione un país",
+  "selectCountry": "Seleccionar un país",
+  "year": "Año",
+  "import": "Importar",
+  "holidaysImported": "{{count}} días festivos importados exitosamente",
+  "errorImportingHolidays": "Error al importar días festivos",
+  "addCustomHoliday": "Agregar Día Festivo Personalizado",
+  "officialHolidaysFrom": "Días festivos oficiales de",
+  "workingDay": "Día Laboral",
+  "holiday": "Día Festivo",
+  "today": "Hoy",
+  "cannotEditOfficialHoliday": "No se pueden editar los días festivos oficiales",
+  "customHoliday": "Día Festivo Personalizado",
+  "officialHoliday": "Día Festivo Oficial",
+  "delete": "Eliminar",
+  "deleteHolidayConfirm": "¿Está seguro de que desea eliminar este día festivo?",
+  "yes": "Sí",
+  "no": "No"
 }
--- a/worklenz-frontend/public/locales/es/admin-center/settings.json
+++ b/worklenz-frontend/public/locales/es/admin-center/settings.json
@@ -13,5 +13,21 @@
  "sunday": "Domingo",
  "saveButton": "Guardar",
  "saved": "Configuración guardada exitosamente",
-  "errorSaving": "Error al guardar la configuración"
+  "errorSaving": "Error al guardar la configuración",
+  "holidaySettings": "Configuración de días festivos",
+  "country": "País",
+  "countryRequired": "Por favor seleccione un país",
+  "selectCountry": "Seleccionar país",
+  "state": "Estado/Provincia",
+  "selectState": "Seleccionar estado/provincia (opcional)",
+  "autoSyncHolidays": "Sincronizar automáticamente los días festivos oficiales",
+  "saveHolidaySettings": "Guardar configuración de días festivos",
+  "holidaySettingsSaved": "Configuración de días festivos guardada exitosamente",
+  "errorSavingHolidaySettings": "Error al guardar la configuración de días festivos",
+  "addCustomHoliday": "Agregar Día Festivo Personalizado",
+  "officialHolidaysFrom": "Días festivos oficiales de",
+  "workingDay": "Día Laboral",
+  "holiday": "Día Festivo",
+  "today": "Hoy",
+  "cannotEditOfficialHoliday": "No se pueden editar los días festivos oficiales"
 }
--- a/worklenz-frontend/public/locales/pt/admin-center/overview.json
+++ b/worklenz-frontend/public/locales/pt/admin-center/overview.json
@@ -28,5 +28,45 @@
  "manDaysCalculationDescription": "Todos os custos do projeto serão calculados usando dias homem estimados × taxas diárias",
  "calculationMethodTooltip": "Esta configuração se aplica a todos os projetos em sua organização",
  "calculationMethodUpdated": "Método de cálculo da organização atualizado com sucesso",
-  "calculationMethodUpdateError": "Erro ao atualizar o método de cálculo"
+  "calculationMethodUpdateError": "Erro ao atualizar o método de cálculo",
+  "holidayCalendar": "Calendário de Feriados",
+  "addHoliday": "Adicionar Feriado",
+  "editHoliday": "Editar Feriado",
+  "holidayName": "Nome do Feriado",
+  "holidayNameRequired": "Por favor, digite o nome do feriado",
+  "description": "Descrição",
+  "date": "Data",
+  "dateRequired": "Por favor, selecione uma data",
+  "holidayType": "Tipo de Feriado",
+  "holidayTypeRequired": "Por favor, selecione um tipo de feriado",
+  "recurring": "Recorrente",
+  "save": "Salvar",
+  "update": "Atualizar",
+  "cancel": "Cancelar",
+  "holidayCreated": "Feriado criado com sucesso",
+  "holidayUpdated": "Feriado atualizado com sucesso",
+  "holidayDeleted": "Feriado excluído com sucesso",
+  "errorCreatingHoliday": "Erro ao criar feriado",
+  "errorUpdatingHoliday": "Erro ao atualizar feriado",
+  "errorDeletingHoliday": "Erro ao excluir feriado",
+  "importCountryHolidays": "Importar Feriados do País",
+  "country": "País",
+  "countryRequired": "Por favor, selecione um país",
+  "selectCountry": "Selecionar um país",
+  "year": "Ano",
+  "import": "Importar",
+  "holidaysImported": "{{count}} feriados importados com sucesso",
+  "errorImportingHolidays": "Erro ao importar feriados",
+  "addCustomHoliday": "Adicionar Feriado Personalizado",
+  "officialHolidaysFrom": "Feriados oficiais de",
+  "workingDay": "Dia de Trabalho",
+  "holiday": "Feriado",
+  "today": "Hoje",
+  "cannotEditOfficialHoliday": "Não é possível editar feriados oficiais",
+  "customHoliday": "Feriado Personalizado",
+  "officialHoliday": "Feriado Oficial",
+  "delete": "Excluir",
+  "deleteHolidayConfirm": "Tem certeza de que deseja excluir este feriado?",
+  "yes": "Sim",
+  "no": "Não"
 }
--- a/worklenz-frontend/public/locales/pt/admin-center/settings.json
+++ b/worklenz-frontend/public/locales/pt/admin-center/settings.json
@@ -13,5 +13,21 @@
  "sunday": "Domingo",
  "saveButton": "Salvar",
  "saved": "Configurações salvas com sucesso",
-  "errorSaving": "Erro ao salvar configurações"
+  "errorSaving": "Erro ao salvar configurações",
+  "holidaySettings": "Configurações de feriados",
+  "country": "País",
+  "countryRequired": "Por favor, selecione um país",
+  "selectCountry": "Selecionar país",
+  "state": "Estado/Província",
+  "selectState": "Selecionar estado/província (opcional)",
+  "autoSyncHolidays": "Sincronizar automaticamente feriados oficiais",
+  "saveHolidaySettings": "Salvar configurações de feriados",
+  "holidaySettingsSaved": "Configurações de feriados salvas com sucesso",
+  "errorSavingHolidaySettings": "Erro ao salvar configurações de feriados",
+  "addCustomHoliday": "Adicionar Feriado Personalizado",
+  "officialHolidaysFrom": "Feriados oficiais de",
+  "workingDay": "Dia de Trabalho",
+  "holiday": "Feriado",
+  "today": "Hoje",
+  "cannotEditOfficialHoliday": "Não é possível editar feriados oficiais"
 }
--- a/worklenz-frontend/public/locales/zh/admin-center/overview.json
+++ b/worklenz-frontend/public/locales/zh/admin-center/overview.json
@@ -28,5 +28,45 @@
  "manDaysCalculationDescription": "所有项目成本将使用估算人天数 × 日费率计算",
  "calculationMethodTooltip": "此设置适用于您组织中的所有项目",
  "calculationMethodUpdated": "组织计算方法更新成功",
-  "calculationMethodUpdateError": "更新计算方法失败"
+  "calculationMethodUpdateError": "更新计算方法失败",
+  "holidayCalendar": "假期日历",
+  "addHoliday": "添加假期",
+  "editHoliday": "编辑假期",
+  "holidayName": "假期名称",
+  "holidayNameRequired": "请输入假期名称",
+  "description": "描述",
+  "date": "日期",
+  "dateRequired": "请选择日期",
+  "holidayType": "假期类型",
+  "holidayTypeRequired": "请选择假期类型",
+  "recurring": "循环",
+  "save": "保存",
+  "update": "更新",
+  "cancel": "取消",
+  "holidayCreated": "假期创建成功",
+  "holidayUpdated": "假期更新成功",
+  "holidayDeleted": "假期删除成功",
+  "errorCreatingHoliday": "创建假期时出错",
+  "errorUpdatingHoliday": "更新假期时出错",
+  "errorDeletingHoliday": "删除假期时出错",
+  "importCountryHolidays": "导入国家假期",
+  "country": "国家",
+  "countryRequired": "请选择国家",
+  "selectCountry": "选择国家",
+  "year": "年份",
+  "import": "导入",
+  "holidaysImported": "成功导入{{count}}个假期",
+  "errorImportingHolidays": "导入假期时出错",
+  "addCustomHoliday": "添加自定义假期",
+  "officialHolidaysFrom": "官方假期来自",
+  "workingDay": "工作日",
+  "holiday": "假期",
+  "today": "今天",
+  "cannotEditOfficialHoliday": "无法编辑官方假期",
+  "customHoliday": "自定义假期",
+  "officialHoliday": "官方假期",
+  "delete": "删除",
+  "deleteHolidayConfirm": "您确定要删除这个假期吗？",
+  "yes": "是",
+  "no": "否"
 }
--- a/worklenz-frontend/public/locales/zh/admin-center/settings.json
+++ b/worklenz-frontend/public/locales/zh/admin-center/settings.json
@@ -13,5 +13,21 @@
  "sunday": "星期日",
  "saveButton": "保存",
  "saved": "设置保存成功",
-  "errorSaving": "保存设置时出错"
+  "errorSaving": "保存设置时出错",
+  "holidaySettings": "假期设置",
+  "country": "国家",
+  "countryRequired": "请选择一个国家",
+  "selectCountry": "选择国家",
+  "state": "州/省",
+  "selectState": "选择州/省（可选）",
+  "autoSyncHolidays": "自动同步官方假期",
+  "saveHolidaySettings": "保存假期设置",
+  "holidaySettingsSaved": "假期设置保存成功",
+  "errorSavingHolidaySettings": "保存假期设置时出错",
+  "addCustomHoliday": "添加自定义假期",
+  "officialHolidaysFrom": "官方假期来自",
+  "workingDay": "工作日",
+  "holiday": "假期",
+  "today": "今天",
+  "cannotEditOfficialHoliday": "无法编辑官方假期"
 }
--- a/worklenz-frontend/src/api/holiday/holiday.api.service.ts
+++ b/worklenz-frontend/src/api/holiday/holiday.api.service.ts
@@ -19,63 +19,51 @@ import {
 const rootUrl = `${API_BASE_URL}/holidays`;

 export const holidayApiService = {
-  // Holiday types - PLACEHOLDER with Sri Lankan specific types
+  // Holiday types
  getHolidayTypes: async (): Promise<IServerResponse<IHolidayType[]>> => {
-    // Return holiday types including Sri Lankan specific types
-    const holidayTypes = [
-      { id: '1', name: 'Public Holiday', color_code: '#DC143C' },
-      { id: '2', name: 'Religious Holiday', color_code: '#4ecdc4' },
-      { id: '3', name: 'National Holiday', color_code: '#45b7d1' },
-      { id: '4', name: 'Company Holiday', color_code: '#f9ca24' },
-      { id: '5', name: 'Personal Holiday', color_code: '#6c5ce7' },
-      { id: '6', name: 'Bank Holiday', color_code: '#4682B4' },
-      { id: '7', name: 'Mercantile Holiday', color_code: '#32CD32' },
-      { id: '8', name: 'Poya Day', color_code: '#8B4513' },
-    ];
-    
-    return {
-      done: true,
-      body: holidayTypes,
-    } as IServerResponse<IHolidayType[]>;
+    const response = await apiClient.get<IServerResponse<IHolidayType[]>>(
+      `${rootUrl}/types`
+    );
+    return response.data;
  },

-  // Organization holidays - PLACEHOLDER until backend implements
+  // Organization holidays
  getOrganizationHolidays: async (
    year?: number
  ): Promise<IServerResponse<IOrganizationHoliday[]>> => {
-    // Return empty array for now to prevent 404 errors
-    return {
-      done: true,
-      body: [],
-    } as IServerResponse<IOrganizationHoliday[]>;
+    const params = year ? { year } : {};
+    const response = await apiClient.get<IServerResponse<IOrganizationHoliday[]>>(
+      `${rootUrl}/organization`,
+      { params }
+    );
+    return response.data;
  },

-  // Holiday CRUD operations - PLACEHOLDER until backend implements
+  // Holiday CRUD operations
  createOrganizationHoliday: async (data: ICreateHolidayRequest): Promise<IServerResponse<any>> => {
-    // Return success for now to prevent UI errors
-    return {
-      done: true,
-      body: { id: Date.now().toString(), ...data },
-    } as IServerResponse<any>;
+    const response = await apiClient.post<IServerResponse<any>>(
+      `${rootUrl}/organization`,
+      data
+    );
+    return response.data;
  },

  updateOrganizationHoliday: async (
    id: string,
    data: IUpdateHolidayRequest
  ): Promise<IServerResponse<any>> => {
-    // Return success for now to prevent UI errors
-    return {
-      done: true,
-      body: { id, ...data },
-    } as IServerResponse<any>;
+    const response = await apiClient.put<IServerResponse<any>>(
+      `${rootUrl}/organization/${id}`,
+      data
+    );
+    return response.data;
  },

  deleteOrganizationHoliday: async (id: string): Promise<IServerResponse<any>> => {
-    // Return success for now to prevent UI errors
-    return {
-      done: true,
-      body: {},
-    } as IServerResponse<any>;
+    const response = await apiClient.delete<IServerResponse<any>>(
+      `${rootUrl}/organization/${id}`
+    );
+    return response.data;
  },

  // Country holidays - PLACEHOLDER with all date-holidays supported countries  
@@ -200,11 +188,15 @@ export const holidayApiService = {
    countryCode: string,
    year?: number
  ): Promise<IServerResponse<ICountryHoliday[]>> => {
-    // Return empty array for now
-    return {
-      done: true,
-      body: [],
-    } as IServerResponse<ICountryHoliday[]>;
+    const params: any = { country_code: countryCode };
+    if (year) {
+      params.year = year;
+    }
+    const response = await apiClient.get<IServerResponse<ICountryHoliday[]>>(
+      `${rootUrl}/countries/${countryCode}`,
+      { params }
+    );
+    return response.data;
  },

  importCountryHolidays: async (
@@ -229,35 +221,35 @@ export const holidayApiService = {
    } as IServerResponse<IHolidayCalendarEvent[]>;
  },

-  // Organization holiday settings - PLACEHOLDER until backend implements
+  // Organization holiday settings
  getOrganizationHolidaySettings: async (): Promise<
    IServerResponse<IOrganizationHolidaySettings>
  > => {
-    // Return default settings for now
-    return {
-      done: true,
-      body: {
-        country_code: undefined,
-        state_code: undefined,
-        auto_sync_holidays: false,
-      },
-    } as IServerResponse<IOrganizationHolidaySettings>;
+    const response = await apiClient.get<IServerResponse<IOrganizationHolidaySettings>>(
+      `${API_BASE_URL}/admin-center/organization/holiday-settings`
+    );
+    return response.data;
  },

  updateOrganizationHolidaySettings: async (
    data: IOrganizationHolidaySettings
  ): Promise<IServerResponse<any>> => {
-    // Just return success for now
-    return {
-      done: true,
-      body: {},
-    } as IServerResponse<any>;
+    const response = await apiClient.put<IServerResponse<any>>(
+      `${API_BASE_URL}/admin-center/organization/holiday-settings`,
+      data
+    );
+    return response.data;
  },

-  // Countries with states - PLACEHOLDER with date-holidays supported countries
+  // Countries with states
  getCountriesWithStates: async (): Promise<IServerResponse<ICountryWithStates[]>> => {
-    // Return comprehensive list of countries supported by date-holidays library
-    const supportedCountries = [
+    const response = await apiClient.get<IServerResponse<ICountryWithStates[]>>(
+      `${API_BASE_URL}/admin-center/countries-with-states`
+    );
+    return response.data;
+    
+    // Fallback to static data if API fails
+    /*const supportedCountries = [
      { code: 'AD', name: 'Andorra' },
      { code: 'AE', name: 'United Arab Emirates' },
      { code: 'AG', name: 'Antigua & Barbuda' },
@@ -696,41 +688,85 @@ export const holidayApiService = {
    return {
      done: true,
      body: supportedCountries,
-    } as IServerResponse<ICountryWithStates[]>;
+    } as IServerResponse<ICountryWithStates[]>;*/
  },

-  // Combined holidays (official + custom) - Database-driven approach for Sri Lanka
+  // Combined holidays (official + custom) - Database-driven approach
  getCombinedHolidays: async (
    params: ICombinedHolidaysRequest & { country_code?: string }
  ): Promise<IServerResponse<IHolidayCalendarEvent[]>> => {
    try {
+      console.log('🔍 getCombinedHolidays called with params:', params);
      const year = new Date(params.from_date).getFullYear();
      let allHolidays: IHolidayCalendarEvent[] = [];

-      // Handle Sri Lankan holidays from database
-      if (params.country_code === 'LK' && year === 2025) {
-        // Import Sri Lankan holiday data
-        const { sriLankanHolidays2025 } = await import('@/data/sri-lanka-holidays-2025');
+      // Get official holidays - handle Sri Lanka specially, others from API
+      if (params.country_code) {
+        console.log(`🌐 Fetching official holidays for country: ${params.country_code}, year: ${year}`);
        
-        const sriLankanHolidays = sriLankanHolidays2025
-          .filter(h => h.date >= params.from_date && h.date <= params.to_date)
-          .map(h => ({
-            id: `lk-${h.date}-${h.name.replace(/\s+/g, '-').toLowerCase()}`,
-            name: h.name,
-            description: h.description,
-            date: h.date,
-            is_recurring: h.is_recurring,
-            holiday_type_name: h.type,
-            color_code: h.color_code,
-            source: 'official' as const,
-            is_editable: false,
-          }));
-        
-        allHolidays.push(...sriLankanHolidays);
+        // Handle Sri Lankan holidays from static data
+        if (params.country_code === 'LK' && year === 2025) {
+          try {
+            console.log('🇱🇰 Loading Sri Lankan holidays from static data...');
+            const { sriLankanHolidays2025 } = await import('@/data/sri-lanka-holidays-2025');
+            
+            const sriLankanHolidays = sriLankanHolidays2025
+              .filter(h => h.date >= params.from_date && h.date <= params.to_date)
+              .map(h => ({
+                id: `lk-${h.date}-${h.name.replace(/\\s+/g, '-').toLowerCase()}`,
+                name: h.name,
+                description: h.description,
+                date: h.date,
+                is_recurring: h.is_recurring,
+                holiday_type_name: h.type,
+                color_code: h.color_code,
+                source: 'official' as const,
+                is_editable: false,
+              }));
+            
+            console.log(`✅ Found ${sriLankanHolidays.length} Sri Lankan holidays`);
+            allHolidays.push(...sriLankanHolidays);
+          } catch (error) {
+            console.error('❌ Error loading Sri Lankan holidays:', error);
+          }
+        } else {
+          // Handle other countries from API
+          try {
+            const countryHolidaysRes = await holidayApiService.getCountryHolidays(params.country_code, year);
+            console.log('📅 Country holidays response:', countryHolidaysRes);
+            
+            if (countryHolidaysRes.done && countryHolidaysRes.body) {
+              const officialHolidays = countryHolidaysRes.body
+                .filter((h: any) => h.date >= params.from_date && h.date <= params.to_date)
+                .map((h: any) => ({
+                  id: `${params.country_code}-${h.id}`,
+                  name: h.name,
+                  description: h.description,
+                  date: h.date,
+                  is_recurring: h.is_recurring,
+                  holiday_type_name: 'Official Holiday',
+                  color_code: h.color_code || '#1890ff',
+                  source: 'official' as const,
+                  is_editable: false,
+                }));
+              
+              console.log(`✅ Found ${officialHolidays.length} official holidays from API`);
+              allHolidays.push(...officialHolidays);
+            } else {
+              console.log('⚠️ No official holidays returned from API');
+            }
+          } catch (error) {
+            console.error('❌ Error fetching official holidays from API:', error);
+          }
+        }
+      } else {
+        console.log('⚠️ No country code provided, skipping official holidays');
      }

      // Get organization holidays from database (includes both custom and country-specific)
+      console.log(`🏢 Fetching organization holidays for year: ${year}`);
      const customRes = await holidayApiService.getOrganizationHolidays(year);
+      console.log('🏢 Organization holidays response:', customRes);
      
      if (customRes.done && customRes.body) {
        const customHolidays = customRes.body
@@ -747,13 +783,17 @@ export const holidayApiService = {
            is_editable: h.is_editable !== false, // Default to true unless explicitly false
          }));

-        // Filter out duplicates (in case Sri Lankan holidays are already in DB)
+        // Filter out duplicates (in case official holidays are already in DB)
        const existingDates = new Set(allHolidays.map(h => h.date));
        const uniqueCustomHolidays = customHolidays.filter((h: any) => !existingDates.has(h.date));
        
+        console.log(`✅ Found ${customHolidays.length} organization holidays (${uniqueCustomHolidays.length} unique)`);
        allHolidays.push(...uniqueCustomHolidays);
+      } else {
+        console.log('⚠️ No organization holidays returned from API');
      }

+      console.log(`🎉 Total holidays combined: ${allHolidays.length}`, allHolidays);
      return {
        done: true,
        body: allHolidays,
@@ -798,12 +838,9 @@ export const holidayApiService = {
    } as IServerResponse<{ working_days: number; total_days: number; holidays_count: number }>;
  },

-  // Populate holidays - PLACEHOLDER until backend implements (deprecated - keeping for backward compatibility)
+  // Populate holidays - Populate the database with official holidays for various countries
  populateCountryHolidays: async (): Promise<IServerResponse<any>> => {
-    // Return success for now
-    return {
-      done: true,
-      body: { message: 'Holidays populated successfully' },
-    } as IServerResponse<any>;
+    const response = await apiClient.post<IServerResponse<any>>(`${rootUrl}/populate`);
+    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
@@ -4,20 +4,37 @@

 .holiday-calendar .ant-picker-calendar {
  background: transparent;
+  border-radius: 12px;
+  overflow: hidden;
+  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
+}
+
+.holiday-calendar.dark .ant-picker-calendar {
+  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
 }

 .holiday-calendar .ant-picker-calendar-header {
-  padding: 12px 0;
+  padding: 20px 24px;
+  background: linear-gradient(135deg, #fafbfc 0%, #f1f3f4 100%);
+  border-bottom: 1px solid #e8eaed;
+  border-radius: 12px 12px 0 0;
+}
+
+.holiday-calendar.dark .ant-picker-calendar-header {
+  background: linear-gradient(135deg, #1f1f1f 0%, #262626 100%);
+  border-bottom-color: #303030;
 }

 .holiday-calendar .ant-picker-calendar-date {
  position: relative;
-  height: 80px;
-  padding: 4px 8px;
+  height: 85px;
+  padding: 6px 10px;
  border: 1px solid #f0f0f0;
-  border-radius: 6px;
-  transition: all 0.3s;
+  border-radius: 10px;
+  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;
+  background: #ffffff;
+  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.02);
 }

 .holiday-calendar.dark .ant-picker-calendar-date {
@@ -25,18 +42,161 @@
  background: #1f1f1f;
 }

+/* Calendar cell wrapper */
+.calendar-cell {
+  position: relative;
+  height: 100%;
+  width: 100%;
+}
+
+/* Working day styles */
+.calendar-cell.working-day {
+  background: #ffffff;
+  border: 1px solid #d9d9d9;
+  position: relative;
+}
+
+.calendar-cell.working-day::before {
+  content: '';
+  position: absolute;
+  top: 0;
+  left: 0;
+  right: 0;
+  bottom: 0;
+  background: rgba(82, 196, 26, 0.04);
+  border-radius: inherit;
+  pointer-events: none;
+  transition: opacity 0.3s ease;
+}
+
+.holiday-calendar.dark .calendar-cell.working-day {
+  background: #1f1f1f;
+  border: 1px solid #434343;
+}
+
+.holiday-calendar.dark .calendar-cell.working-day::before {
+  background: rgba(82, 196, 26, 0.06);
+}
+
+/* Non-working day styles */
+.calendar-cell.non-working-day {
+  background: #fafafa;
+  border: 1px solid #f0f0f0;
+  opacity: 0.65;
+}
+
+.holiday-calendar.dark .calendar-cell.non-working-day {
+  background: #141414;
+  border: 1px solid #303030;
+  opacity: 0.65;
+}
+
+/* Today styles */
+.calendar-cell.today {
+  border: 2px solid #1890ff;
+  box-shadow: 0 0 0 3px rgba(24, 144, 255, 0.15), 0 4px 12px rgba(24, 144, 255, 0.1);
+  animation: todayPulse 3s ease-in-out infinite;
+}
+
+.holiday-calendar.dark .calendar-cell.today {
+  border: 2px solid #177ddc;
+  box-shadow: 0 0 0 2px rgba(23, 125, 220, 0.3);
+}
+
+/* Other month styles */
+.calendar-cell.other-month {
+  opacity: 0.4;
+}
+
+.holiday-calendar.dark .calendar-cell.other-month {
+  opacity: 0.3;
+}
+
 .holiday-calendar .ant-picker-calendar-date:hover {
-  background: #f5f5f5;
+  transform: translateY(-1px) scale(1.02);
+  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08), 0 2px 6px rgba(0, 0, 0, 0.04);
+  border-color: #d9d9d9;
+}
+
+@media (hover: none) and (pointer: coarse) {
+  .holiday-calendar .ant-picker-calendar-date:hover {
+    transform: none;
+    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.02);
+    border-color: inherit;
+  }
+
+  .holiday-cell .ant-tag:hover {
+    transform: none;
+    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
+  }
 }

 .holiday-calendar.dark .ant-picker-calendar-date:hover {
-  background: #2a2a2a;
+  transform: translateY(-2px);
+  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
+}
+
+/* Working day indicator */
+.working-day-indicator {
+  position: absolute;
+  top: 2px;
+  right: 2px;
+  z-index: 2;
+}
+
+.working-day-badge {
+  width: 16px;
+  height: 16px;
+  border-radius: 3px;
+  background: #52c41a;
+  color: #ffffff;
+  font-size: 9px;
+  font-weight: 600;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  box-shadow: 0 1px 3px rgba(82, 196, 26, 0.3);
+  transition: all 0.3s ease;
+  border: 1px solid #d9f7be;
+}
+
+.holiday-calendar.dark .working-day-badge {
+  background: #52c41a;
+  box-shadow: 0 1px 3px rgba(82, 196, 26, 0.4);
+  border-color: #237804;
+}
+
+@keyframes pulse {
+  0% {
+    transform: scale(1);
+    opacity: 1;
+  }
+  50% {
+    transform: scale(1.3);
+    opacity: 0.7;
+  }
+  100% {
+    transform: scale(1);
+    opacity: 1;
+  }
+}
+
+@keyframes todayPulse {
+  0%, 100% {
+    box-shadow: 0 0 0 3px rgba(24, 144, 255, 0.15), 0 4px 12px rgba(24, 144, 255, 0.1);
+  }
+  50% {
+    box-shadow: 0 0 0 4px rgba(24, 144, 255, 0.25), 0 6px 16px rgba(24, 144, 255, 0.15);
+  }
 }

 .holiday-calendar .ant-picker-calendar-date-value {
-  font-size: 12px;
-  font-weight: 500;
-  color: #262626;
+  font-size: 14px;
+  font-weight: 600;
+  color: #1f1f1f;
+  margin-bottom: 6px;
+  line-height: 1.2;
+  text-align: center;
 }

 .holiday-calendar.dark .ant-picker-calendar-date-value {
@@ -44,16 +204,22 @@
 }

 .holiday-calendar .ant-picker-calendar-date-content {
-  height: 100%;
+  height: calc(100% - 20px);
  overflow: hidden;
+  margin-top: 4px;
 }

 .holiday-cell {
  position: absolute;
-  bottom: 2px;
-  left: 2px;
-  right: 2px;
+  bottom: 6px;
+  left: 6px;
+  right: 6px;
  z-index: 1;
+  max-height: 65%;
+  overflow: hidden;
+  display: flex;
+  flex-direction: column;
+  gap: 2px;
 }

 .holiday-cell .ant-tag {
@@ -61,14 +227,27 @@
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
-  border: none;
+  border: 1px solid rgba(255, 255, 255, 0.2);
  font-weight: 500;
  cursor: pointer;
+  font-size: 10px;
+  line-height: 1.3;
+  padding: 2px 6px;
+  border-radius: 6px;
+  backdrop-filter: blur(4px);
+  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
 }

 .holiday-cell .ant-tag:hover {
-  transform: scale(1.05);
-  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
+  transform: scale(1.05) translateY(-1px);
+  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
+  border-color: rgba(255, 255, 255, 0.4);
+  z-index: 10;
+  overflow: visible;
+  white-space: normal;
+  text-overflow: unset;
+  max-width: 200px;
+  position: relative;
 }

 .holiday-calendar .ant-picker-calendar-date-today {
@@ -253,20 +432,243 @@

 /* Tag styles */
 .holiday-calendar .ant-tag {
-  border-radius: 4px;
+  border-radius: 6px;
  font-size: 10px;
-  line-height: 1.2;
-  padding: 1px 4px;
+  line-height: 1.3;
+  padding: 2px 6px;
  margin: 0;
-  border: none;
+  border: 1px solid rgba(255, 255, 255, 0.2);
  font-weight: 500;
+  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
+}
+
+/* Holiday tag specific styles */
+.holiday-tag.official-holiday {
+  background: #e6f7ff !important;
+  border-color: #91d5ff !important;
+  color: #1890ff !important;
+}
+
+.holiday-tag.custom-holiday {
+  background: #f6ffed !important;
+  border-color: #b7eb8f !important;
+  color: #52c41a !important;
+}
+
+.holiday-calendar.dark .holiday-tag.official-holiday {
+  background: #111b26 !important;
+  border-color: #13334c !important;
+  color: #69c0ff !important;
+}
+
+.holiday-calendar.dark .holiday-tag.custom-holiday {
+  background: #162312 !important;
+  border-color: #274916 !important;
+  color: #95de64 !important;
+}
+
+/* Holiday tag icons */
+.custom-holiday-icon {
+  font-size: 8px;
+  filter: drop-shadow(0 1px 1px rgba(0, 0, 0, 0.2));
+}
+
+.official-holiday-icon {
+  font-size: 8px;
+  filter: drop-shadow(0 1px 1px rgba(0, 0, 0, 0.2));
+}
+
+/* Calendar container and legend */
+.calendar-container {
+  position: relative;
+}
+
+.calendar-legend {
+  display: flex;
+  justify-content: center;
+  align-items: center;
+  gap: 24px;
+  margin-top: 16px;
+  padding: 12px 16px;
+  background: #fafafa;
+  border-radius: 6px;
+  border: 1px solid #d9d9d9;
+}
+
+.holiday-calendar.dark .calendar-legend {
+  background: #1f1f1f;
+  border-color: #434343;
+}
+
+.legend-item {
+  display: flex;
+  align-items: center;
+  gap: 8px;
+  font-size: 12px;
+  color: rgba(0, 0, 0, 0.65);
+}
+
+.holiday-calendar.dark .legend-item {
+  color: rgba(255, 255, 255, 0.65);
+}
+
+.legend-dot {
+  width: 8px;
+  height: 8px;
+  border-radius: 50%;
+}
+
+.legend-dot.working-day-dot {
+  background: #52c41a;
+  box-shadow: 0 0 0 1px rgba(82, 196, 26, 0.2);
+}
+
+.legend-dot.holiday-dot {
+  background: #ff4d4f;
+  box-shadow: 0 0 0 1px rgba(255, 77, 79, 0.2);
+}
+
+.legend-dot.today-dot {
+  background: #1890ff;
+  box-shadow: 0 0 0 1px rgba(24, 144, 255, 0.2);
+}
+
+.holiday-calendar.dark .legend-dot.working-day-dot {
+  background: #52c41a;
+  box-shadow: 0 0 0 1px rgba(82, 196, 26, 0.3);
+}
+
+.holiday-calendar.dark .legend-dot.holiday-dot {
+  background: #ff4d4f;
+  box-shadow: 0 0 0 1px rgba(255, 77, 79, 0.3);
+}
+
+.holiday-calendar.dark .legend-dot.today-dot {
+  background: #1890ff;
+  box-shadow: 0 0 0 1px rgba(24, 144, 255, 0.3);
+}
+
+/* Legend badge and tag styles */
+.legend-badge {
+  width: 16px;
+  height: 16px;
+  border-radius: 3px;
+  color: white;
+  font-size: 9px;
+  font-weight: 600;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
+}
+
+.legend-badge.working-day-badge {
+  background: #52c41a;
+  border: 1px solid #d9f7be;
+  color: #ffffff;
+}
+
+.holiday-calendar.dark .legend-badge.working-day-badge {
+  background: #52c41a;
+  border: 1px solid #237804;
+  color: #ffffff;
+}
+
+.legend-tag {
+  display: flex;
+  align-items: center;
+  gap: 2px;
+  padding: 2px 6px;
+  border-radius: 4px;
+  font-size: 9px;
+  font-weight: 500;
+  border: 1px solid;
+}
+
+.legend-tag-text {
+  font-size: 8px;
+  line-height: 1;
+}
+
+.custom-holiday-legend {
+  background: #f6ffed;
+  border: 1px solid #b7eb8f;
+  color: #52c41a;
+}
+
+.official-holiday-legend {
+  background: #e6f7ff;
+  border: 1px solid #91d5ff;
+  color: #1890ff;
+}
+
+.holiday-calendar.dark .custom-holiday-legend {
+  background: #162312;
+  border: 1px solid #274916;
+  color: #95de64;
+}
+
+.holiday-calendar.dark .official-holiday-legend {
+  background: #111b26;
+  border: 1px solid #13334c;
+  color: #69c0ff;
+}
+
+.legend-tag .custom-holiday-icon,
+.legend-tag .official-holiday-icon {
+  font-size: 7px;
+  filter: drop-shadow(0 1px 1px rgba(0, 0, 0, 0.1));
 }

 /* Responsive design */
@media (max-width: 768px) {
  .holiday-calendar .ant-picker-calendar-date {
-    height: 60px;
-    padding: 2px 4px;
+    height: 70px;
+    padding: 4px 6px;
+    border-radius: 8px;
+  }
+
+  .holiday-calendar .ant-picker-calendar-date-value {
+    font-size: 12px;
+    margin-bottom: 4px;
+  }
+
+  .holiday-cell .ant-tag {
+    font-size: 9px;
+    padding: 1px 4px;
+    border-radius: 4px;
+  }
+
+  .calendar-legend {
+    flex-direction: column;
+    gap: 12px;
+    align-items: flex-start;
+    padding: 10px 12px;
+  }
+
+  .working-day-badge {
+    width: 14px;
+    height: 14px;
+    font-size: 8px;
+  }
+
+  .legend-item {
+    font-size: 11px;
+  }
+
+  .holiday-calendar .ant-picker-calendar-header {
+    padding: 16px 18px;
+  }
+
+  .holiday-calendar .ant-picker-calendar-date:hover {
+    transform: scale(1.01);
+  }
+}
+
+@media (max-width: 480px) {
+  .holiday-calendar .ant-picker-calendar-date {
+    height: 65px;
+    padding: 3px 4px;
  }

  .holiday-calendar .ant-picker-calendar-date-value {
@@ -274,7 +676,47 @@
  }

  .holiday-cell .ant-tag {
-    font-size: 9px;
-    padding: 0 2px;
+    font-size: 8px;
+    padding: 1px 3px;
+  }
+
+  .working-day-badge {
+    width: 12px;
+    height: 12px;
+    font-size: 7px;
+  }
+
+  .custom-holiday-icon,
+  .official-holiday-icon {
+    font-size: 7px;
+  }
+
+  .calendar-legend {
+    gap: 8px;
+    padding: 8px 10px;
+  }
+
+  .legend-item {
+    font-size: 10px;
+  }
+
+  .legend-badge {
+    width: 14px;
+    height: 14px;
+    font-size: 8px;
+  }
+
+  .legend-tag {
+    padding: 1px 4px;
+    font-size: 8px;
+  }
+
+  .legend-tag-text {
+    font-size: 7px;
+  }
+
+  .legend-tag .custom-holiday-icon,
+  .legend-tag .official-holiday-icon {
+    font-size: 6px;
  }
 }
--- 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
@@ -14,8 +14,8 @@ import {
  Tag,
  Popconfirm,
  message,
-} from 'antd';
-import { PlusOutlined, DeleteOutlined, EditOutlined } from '@ant-design/icons';
+} from '@/shared/antd-imports';
+import { PlusOutlined, DeleteOutlined, EditOutlined } from '@/shared/antd-imports';
 import { useTranslation } from 'react-i18next';
 import dayjs, { Dayjs } from 'dayjs';
 import { holidayApiService } from '@/api/holiday/holiday.api.service';
@@ -28,7 +28,7 @@ import {
 import { useAppDispatch } from '@/hooks/useAppDispatch';
 import { useAppSelector } from '@/hooks/useAppSelector';
 import { RootState } from '@/app/store';
-import { fetchHolidays } from '@/features/admin-center/admin-center.slice';
+import { fetchHolidays, clearHolidaysCache } from '@/features/admin-center/admin-center.slice';
 import logger from '@/utils/errorLogger';
 import './holiday-calendar.css';

@@ -38,9 +38,10 @@ const { TextArea } = Input;

 interface HolidayCalendarProps {
  themeMode: string;
+  workingDays?: string[];
 }

-const HolidayCalendar: React.FC<HolidayCalendarProps> = ({ themeMode }) => {
+const HolidayCalendar: React.FC<HolidayCalendarProps> = ({ themeMode, workingDays = [] }) => {
  const { t } = useTranslation('admin-center/overview');
  const dispatch = useAppDispatch();
  const { holidays, loadingHolidays, holidaySettings } = useAppSelector(
@@ -66,10 +67,32 @@ const HolidayCalendar: React.FC<HolidayCalendarProps> = ({ themeMode }) => {
    }
  };

-  const fetchHolidaysForDateRange = () => {
+  const populateHolidaysIfNeeded = async () => {
+    // Check if we have holiday settings with a country code but no holidays
+    if (holidaySettings?.country_code && holidays.length === 0) {
+      try {
+        console.log('🔄 No holidays found, attempting to populate official holidays...');
+        const populateRes = await holidayApiService.populateCountryHolidays();
+        if (populateRes.done) {
+          console.log('✅ Official holidays populated successfully');
+          // Refresh holidays after population
+          fetchHolidaysForDateRange(true);
+        }
+      } catch (error) {
+        console.warn('⚠️ Could not populate official holidays:', error);
+      }
+    }
+  };
+
+  const fetchHolidaysForDateRange = (forceRefresh = false) => {
    const startOfYear = currentDate.startOf('year');
    const endOfYear = currentDate.endOf('year');

+    // If forceRefresh is true, clear the cached holidays first
+    if (forceRefresh) {
+      dispatch(clearHolidaysCache());
+    }
+
    dispatch(
      fetchHolidays({
        from_date: startOfYear.format('YYYY-MM-DD'),
@@ -84,6 +107,11 @@ const HolidayCalendar: React.FC<HolidayCalendarProps> = ({ themeMode }) => {
    fetchHolidaysForDateRange();
  }, [currentDate.year()]);

+  // Check if we need to populate holidays when holiday settings are loaded
+  useEffect(() => {
+    populateHolidaysIfNeeded();
+  }, [holidaySettings, holidays.length]);
+
  const customHolidays = useMemo(() => {
    return holidays.filter(holiday => holiday.source === 'custom');
  }, [holidays]);
@@ -103,7 +131,7 @@ const HolidayCalendar: React.FC<HolidayCalendarProps> = ({ themeMode }) => {
        message.success(t('holidayCreated'));
        setModalVisible(false);
        form.resetFields();
-        fetchHolidaysForDateRange();
+        fetchHolidaysForDateRange(true);
      }
    } catch (error) {
      logger.error('Error creating holiday', error);
@@ -133,7 +161,7 @@ const HolidayCalendar: React.FC<HolidayCalendarProps> = ({ themeMode }) => {
        setEditModalVisible(false);
        editForm.resetFields();
        setSelectedHoliday(null);
-        fetchHolidaysForDateRange();
+        fetchHolidaysForDateRange(true);
      }
    } catch (error) {
      logger.error('Error updating holiday', error);
@@ -146,7 +174,12 @@ const HolidayCalendar: React.FC<HolidayCalendarProps> = ({ themeMode }) => {
      const res = await holidayApiService.deleteOrganizationHoliday(holidayId);
      if (res.done) {
        message.success(t('holidayDeleted'));
-        fetchHolidaysForDateRange();
+        // Close the edit modal and reset form
+        setEditModalVisible(false);
+        editForm.resetFields();
+        setSelectedHoliday(null);
+        // Refresh holidays data
+        fetchHolidaysForDateRange(true);
      }
    } catch (error) {
      logger.error('Error deleting holiday', error);
@@ -174,31 +207,55 @@ const HolidayCalendar: React.FC<HolidayCalendarProps> = ({ themeMode }) => {

  const getHolidayDateCellRender = (date: Dayjs) => {
    const dateHolidays = holidays.filter(h => dayjs(h.date).isSame(date, 'day'));
+    const dayName = date.format('dddd');
+    // Check if this day is in the working days array from API response
+    const isWorkingDay = workingDays && workingDays.length > 0 ? workingDays.includes(dayName) : false;
+    const isToday = date.isSame(dayjs(), 'day');
+    const isCurrentMonth = date.isSame(currentDate, 'month');

-    if (dateHolidays.length > 0) {
-      return (
-        <div className="holiday-cell">
-          {dateHolidays.map((holiday, index) => (
-            <Tag
-              key={`${holiday.id}-${index}`}
-              color={holiday.color_code || (holiday.source === 'official' ? '#1890ff' : '#f37070')}
-              style={{
-                fontSize: '10px',
-                padding: '1px 4px',
-                margin: '1px 0',
-                borderRadius: '2px',
-                display: 'block',
-                opacity: holiday.source === 'official' ? 0.8 : 1,
-              }}
-              title={`${holiday.name}${holiday.source === 'official' ? ' (Official)' : ' (Custom)'}`}
-            >
-              {holiday.name}
-            </Tag>
-          ))}
-        </div>
-      );
-    }
-    return null;
+    return (
+      <div className={`calendar-cell ${isWorkingDay ? 'working-day' : 'non-working-day'} ${isToday ? 'today' : ''} ${!isCurrentMonth ? 'other-month' : ''}`}>
+        {dateHolidays.length > 0 && (
+          <div className="holiday-cell">
+            {dateHolidays.map((holiday, index) => {
+              const isOfficial = holiday.source === 'official';
+              const isCustom = holiday.source === 'custom';
+              return (
+                <Tag
+                  key={`${holiday.id}-${index}`}
+                  color={holiday.color_code || (isOfficial ? '#1890ff' : '#52c41a')}
+                  className={`holiday-tag ${isOfficial ? 'official-holiday' : 'custom-holiday'}`}
+                  style={{
+                    fontSize: '10px',
+                    padding: '2px 6px',
+                    margin: '1px 0',
+                    borderRadius: '4px',
+                    display: 'block',
+                    fontWeight: isCustom ? 600 : 500,
+                    border: isCustom ? '1px solid rgba(82, 196, 26, 0.6)' : '1px solid rgba(24, 144, 255, 0.4)',
+                    position: 'relative',
+                  }}
+                  title={`${holiday.name}${isOfficial ? ' (Official Holiday)' : ' (Custom Holiday)'}`}
+                >
+                  {isCustom && (
+                    <span className="custom-holiday-icon" style={{ marginRight: '2px' }}>⭐</span>
+                  )}
+                  {isOfficial && (
+                    <span className="official-holiday-icon" style={{ marginRight: '2px' }}>🏛️</span>
+                  )}
+                  {holiday.name}
+                </Tag>
+              );
+            })}
+          </div>
+        )}
+        {isWorkingDay && (
+          <div className="working-day-indicator" title={`${dayName} - Working Day`}>
+            <div className="working-day-badge">W</div>
+          </div>
+        )}
+      </div>
+    );
  };

  const onPanelChange = (value: Dayjs) => {
@@ -227,40 +284,83 @@ const HolidayCalendar: React.FC<HolidayCalendarProps> = ({ themeMode }) => {
        style={{
          display: 'flex',
          justifyContent: 'space-between',
-          alignItems: 'center',
-          marginBottom: 16,
+          alignItems: 'flex-start',
+          marginBottom: 18,
+          padding: '4px 0',
        }}
      >
-        <Title level={5} style={{ margin: 0 }}>
-          {t('holidayCalendar')}
-        </Title>
-        <Space>
-          <Button
-            type="primary"
-            icon={<PlusOutlined />}
-            onClick={() => setModalVisible(true)}
-            size="small"
-          >
-            {t('addCustomHoliday') || 'Add Custom Holiday'}
-          </Button>
+        <div>
+          <Title level={4} style={{ margin: '0 0 4px 0', fontWeight: 600 }}>
+            {t('holidayCalendar')}
+          </Title>
          {holidaySettings?.country_code && (
-            <Typography.Text type="secondary" style={{ fontSize: '12px' }}>
+            <Typography.Text type="secondary" style={{ fontSize: '13px', fontWeight: 500 }}>
              {t('officialHolidaysFrom') || 'Official holidays from'}:{' '}
-              {holidaySettings.country_code}
-              {holidaySettings.state_code && ` (${holidaySettings.state_code})`}
+              <span style={{ color: themeMode === 'dark' ? '#40a9ff' : '#1890ff' }}>
+                {holidaySettings.country_code}
+                {holidaySettings.state_code && ` (${holidaySettings.state_code})`}
+              </span>
            </Typography.Text>
          )}
-        </Space>
+        </div>
+        <Button
+          type="primary"
+          icon={<PlusOutlined />}
+          onClick={() => setModalVisible(true)}
+          style={{
+            borderRadius: '8px',
+            fontWeight: 500,
+            boxShadow: '0 2px 8px rgba(24, 144, 255, 0.2)',
+            transition: 'all 0.3s cubic-bezier(0.4, 0, 0.2, 1)',
+          }}
+          onMouseEnter={(e) => {
+            e.currentTarget.style.transform = 'translateY(-1px)';
+            e.currentTarget.style.boxShadow = '0 4px 12px rgba(24, 144, 255, 0.3)';
+          }}
+          onMouseLeave={(e) => {
+            e.currentTarget.style.transform = 'translateY(0)';
+            e.currentTarget.style.boxShadow = '0 2px 8px rgba(24, 144, 255, 0.2)';
+          }}
+        >
+          {t('addCustomHoliday') || 'Add Custom Holiday'}
+        </Button>
      </div>

-      <Calendar
-        value={currentDate}
-        onPanelChange={onPanelChange}
-        onSelect={onDateSelect}
-        dateCellRender={getHolidayDateCellRender}
-        className={`holiday-calendar ${themeMode}`}
-        loading={loadingHolidays}
-      />
+      <div className="calendar-container">
+        <Calendar
+          value={currentDate}
+          onPanelChange={onPanelChange}
+          onSelect={onDateSelect}
+          dateCellRender={getHolidayDateCellRender}
+          className={`holiday-calendar ${themeMode}`}
+        />
+        
+        {/* Calendar Legend */}
+        <div className="calendar-legend">
+          <div className="legend-item">
+            <div className="legend-badge working-day-badge">W</div>
+            <span>{t('workingDay') || 'Working Day'}</span>
+          </div>
+          <div className="legend-item">
+            <div className="legend-tag custom-holiday-legend">
+              <span className="custom-holiday-icon">⭐</span>
+              <span className="legend-tag-text">Custom</span>
+            </div>
+            <span>{t('customHoliday') || 'Custom Holiday'}</span>
+          </div>
+          <div className="legend-item">
+            <div className="legend-tag official-holiday-legend">
+              <span className="official-holiday-icon">🏛️</span>
+              <span className="legend-tag-text">Official</span>
+            </div>
+            <span>{t('officialHoliday') || 'Official Holiday'}</span>
+          </div>
+          <div className="legend-item">
+            <div className="legend-dot today-dot"></div>
+            <span>{t('today') || 'Today'}</span>
+          </div>
+        </div>
+      </div>

      {/* Create Holiday Modal */}
      <Modal
@@ -417,6 +517,18 @@ const HolidayCalendar: React.FC<HolidayCalendarProps> = ({ themeMode }) => {
              >
                {t('cancel')}
              </Button>
+              {selectedHoliday && selectedHoliday.source === 'custom' && selectedHoliday.is_editable && (
+                <Popconfirm
+                  title={t('deleteHolidayConfirm') || 'Are you sure you want to delete this holiday?'}
+                  onConfirm={() => handleDeleteHoliday(selectedHoliday.id)}
+                  okText={t('yes') || 'Yes'}
+                  cancelText={t('no') || 'No'}
+                >
+                  <Button type="primary" danger icon={<DeleteOutlined />}>
+                    {t('delete') || 'Delete'}
+                  </Button>
+                </Popconfirm>
+              )}
            </Space>
          </Form.Item>
        </Form>
--- a/worklenz-frontend/src/data/sri-lanka-holidays-2025.ts
+++ b/worklenz-frontend/src/data/sri-lanka-holidays-2025.ts
@@ -20,16 +20,6 @@ export interface SriLankanHolidayData {

 export const sriLankanHolidays2025: SriLankanHolidayData[] = [
  // January
-  {
-    name: "New Year's Day",
-    date: "2025-01-01",
-    type: "Public",
-    description: "Celebration of the first day of the Gregorian calendar year",
-    is_recurring: true,
-    is_poya: false,
-    country_code: "LK",
-    color_code: "#DC143C"
-  },
  {
    name: "Duruthu Full Moon Poya Day",
    date: "2025-01-13",
--- a/worklenz-frontend/src/features/admin-center/admin-center.slice.ts
+++ b/worklenz-frontend/src/features/admin-center/admin-center.slice.ts
@@ -105,7 +105,6 @@ export const updateHolidaySettings = createAsyncThunk(
  async (settings: IOrganizationHolidaySettings) => {
    const { holidayApiService } = await import('@/api/holiday/holiday.api.service');
    await holidayApiService.updateOrganizationHolidaySettings(settings);
-    await adminCenterApiService.updateOrganizationHolidaySettings(settings);
    return settings;
  }
 );
@@ -164,6 +163,10 @@ const adminCenterSlice = createSlice({
        ? (state.isUpgradeModalOpen = false)
        : (state.isUpgradeModalOpen = true);
    },
+    clearHolidaysCache: state => {
+      state.holidays = [];
+      state.holidaysDateRange = null;
+    },
  },
  extraReducers: builder => {
    builder.addCase(fetchBillingInfo.pending, (state, action) => {
@@ -264,7 +267,7 @@ const adminCenterSlice = createSlice({
  },
 });

-export const { toggleRedeemCodeDrawer, toggleUpgradeModal } = adminCenterSlice.actions;
+export const { toggleRedeemCodeDrawer, toggleUpgradeModal, clearHolidaysCache } = adminCenterSlice.actions;

 // Selectors for optimized access
 export const selectHolidaysByDateRange = createSelector(
--- a/worklenz-frontend/src/pages/admin-center/settings/settings.tsx
+++ b/worklenz-frontend/src/pages/admin-center/settings/settings.tsx
@@ -12,17 +12,14 @@ import {
  message,
  Select,
  Switch,
-  Divider,
 } from '@/shared/antd-imports';
 import { PageHeader } from '@ant-design/pro-components';
 import { useTranslation } from 'react-i18next';
-import { IOrganization, IOrganizationAdmin } from '@/types/admin-center/admin-center.types';
 import logger from '@/utils/errorLogger';
 import { scheduleAPIService } from '@/api/schedule/schedule.api.service';
 import { Settings } from '@/types/schedule/schedule-v2.types';
 import OrganizationCalculationMethod from '@/components/admin-center/overview/organization-calculation-method/organization-calculation-method';
 import HolidayCalendar from '@/components/admin-center/overview/holiday-calendar/holiday-calendar';
-import { holidayApiService } from '@/api/holiday/holiday.api.service';
 import { useAppDispatch } from '@/hooks/useAppDispatch';
 import { useAppSelector } from '@/hooks/useAppSelector';
 import { RootState } from '@/app/store';
@@ -38,11 +35,7 @@ const SettingsPage: React.FC = () => {
  const dispatch = useAppDispatch();
  const {
    organization,
-    organizationAdmins,
-    loadingOrganization,
-    loadingOrganizationAdmins,
    holidaySettings,
-    loadingHolidaySettings,
    countriesWithStates,
    loadingCountries,
  } = useAppSelector((state: RootState) => state.adminCenterReducer);
@@ -241,7 +234,7 @@ const SettingsPage: React.FC = () => {
                    }}
                    showSearch
                    filterOption={(input, option) =>
-                      (option?.children as string)?.toLowerCase().includes(input.toLowerCase())
+                      (option?.children as unknown as string)?.toLowerCase().includes(input.toLowerCase())
                    }
                  >
                    {countriesWithStates.map(country => (
@@ -260,7 +253,7 @@ const SettingsPage: React.FC = () => {
                    disabled={!holidayForm.getFieldValue('country_code')}
                    showSearch
                    filterOption={(input, option) =>
-                      (option?.children as string)?.toLowerCase().includes(input.toLowerCase())
+                      (option?.children as unknown as string)?.toLowerCase().includes(input.toLowerCase())
                    }
                  >
                    {getSelectedCountryStates().map(state => (
@@ -287,7 +280,7 @@ const SettingsPage: React.FC = () => {
          </Form>
        </Card>

-        <HolidayCalendar themeMode={themeMode} />
+        <HolidayCalendar themeMode={themeMode} workingDays={workingDays} />
      </Space>
    </div>
  );