diff --git a/database/seeders/HolidayCalendarSeeder.php b/database/seeders/HolidayCalendarSeeder.php
new file mode 100644
index 0000000..d6a19ad
--- /dev/null
+++ b/database/seeders/HolidayCalendarSeeder.php
@@ -0,0 +1,216 @@
+<?php
+
+    namespace Modules\Basicdata\Database\Seeders;
+
+    use Illuminate\Database\Seeder;
+    use Illuminate\Support\Facades\DB;
+    use Carbon\Carbon;
+
+    class HolidayCalendarSeeder extends Seeder
+    {
+        /**
+         * Run the database seeds.
+         *
+         * @return void
+         */
+        public function run()
+        {
+            $now = Carbon::now();
+            $holidays = [
+                // Libur Nasional 2025
+                [
+                    'date' => '2025-01-01',
+                    'description' => 'Tahun Baru 2025 Masehi',
+                    'type' => 'national_holiday',
+                    'created_at' => $now,
+                    'updated_at' => $now
+                ],
+                [
+                    'date' => '2025-01-27',
+                    'description' => 'Isra Miraj Nabi Muhammad SAW',
+                    'type' => 'national_holiday',
+                    'created_at' => $now,
+                    'updated_at' => $now
+                ],
+                [
+                    'date' => '2025-01-29',
+                    'description' => 'Tahun Baru Imlek 2576 Kongzili',
+                    'type' => 'national_holiday',
+                    'created_at' => $now,
+                    'updated_at' => $now
+                ],
+                [
+                    'date' => '2025-03-29',
+                    'description' => 'Hari Suci Nyepi (Tahun Baru Saka 1947)',
+                    'type' => 'national_holiday',
+                    'created_at' => $now,
+                    'updated_at' => $now
+                ],
+                [
+                    'date' => '2025-03-31',
+                    'description' => 'Idul Fitri 1446 Hijriah',
+                    'type' => 'national_holiday',
+                    'created_at' => $now,
+                    'updated_at' => $now
+                ],
+                [
+                    'date' => '2025-04-01',
+                    'description' => 'Idul Fitri 1446 Hijriah',
+                    'type' => 'national_holiday',
+                    'created_at' => $now,
+                    'updated_at' => $now
+                ],
+                [
+                    'date' => '2025-04-18',
+                    'description' => 'Wafat Yesus Kristus',
+                    'type' => 'national_holiday',
+                    'created_at' => $now,
+                    'updated_at' => $now
+                ],
+                [
+                    'date' => '2025-04-20',
+                    'description' => 'Kebangkitan Yesus Kristus (Paskah)',
+                    'type' => 'national_holiday',
+                    'created_at' => $now,
+                    'updated_at' => $now
+                ],
+                [
+                    'date' => '2025-05-01',
+                    'description' => 'Hari Buruh Internasional',
+                    'type' => 'national_holiday',
+                    'created_at' => $now,
+                    'updated_at' => $now
+                ],
+                [
+                    'date' => '2025-05-12',
+                    'description' => 'Hari Raya Waisak 2569 BE',
+                    'type' => 'national_holiday',
+                    'created_at' => $now,
+                    'updated_at' => $now
+                ],
+                [
+                    'date' => '2025-05-29',
+                    'description' => 'Kenaikan Yesus Kristus',
+                    'type' => 'national_holiday',
+                    'created_at' => $now,
+                    'updated_at' => $now
+                ],
+                [
+                    'date' => '2025-06-01',
+                    'description' => 'Hari Lahir Pancasila',
+                    'type' => 'national_holiday',
+                    'created_at' => $now,
+                    'updated_at' => $now
+                ],
+                [
+                    'date' => '2025-06-06',
+                    'description' => 'Idul Adha 1446 Hijriah',
+                    'type' => 'national_holiday',
+                    'created_at' => $now,
+                    'updated_at' => $now
+                ],
+                [
+                    'date' => '2025-06-27',
+                    'description' => '1 Muharam Tahun Baru Islam 1447 Hijriah',
+                    'type' => 'national_holiday',
+                    'created_at' => $now,
+                    'updated_at' => $now
+                ],
+                [
+                    'date' => '2025-08-17',
+                    'description' => 'Proklamasi Kemerdekaan',
+                    'type' => 'national_holiday',
+                    'created_at' => $now,
+                    'updated_at' => $now
+                ],
+                [
+                    'date' => '2025-09-05',
+                    'description' => 'Maulid Nabi Muhammad SAW',
+                    'type' => 'national_holiday',
+                    'created_at' => $now,
+                    'updated_at' => $now
+                ],
+                [
+                    'date' => '2025-12-25',
+                    'description' => 'Kelahiran Yesus Kristus',
+                    'type' => 'national_holiday',
+                    'created_at' => $now,
+                    'updated_at' => $now
+                ],
+
+                // Cuti Bersama 2025
+                [
+                    'date' => '2025-01-28',
+                    'description' => 'Cuti Bersama Tahun Baru Imlek 2576 Kongzili',
+                    'type' => 'collective_leave',
+                    'created_at' => $now,
+                    'updated_at' => $now
+                ],
+                [
+                    'date' => '2025-03-28',
+                    'description' => 'Cuti Bersama Hari Suci Nyepi (Tahun Baru Saka 1947)',
+                    'type' => 'collective_leave',
+                    'created_at' => $now,
+                    'updated_at' => $now
+                ],
+                [
+                    'date' => '2025-04-02',
+                    'description' => 'Cuti Bersama Idul Fitri',
+                    'type' => 'collective_leave',
+                    'created_at' => $now,
+                    'updated_at' => $now
+                ],
+                [
+                    'date' => '2025-04-03',
+                    'description' => 'Cuti Bersama Idul Fitri',
+                    'type' => 'collective_leave',
+                    'created_at' => $now,
+                    'updated_at' => $now
+                ],
+                [
+                    'date' => '2025-04-04',
+                    'description' => 'Cuti Bersama Idul Fitri',
+                    'type' => 'collective_leave',
+                    'created_at' => $now,
+                    'updated_at' => $now
+                ],
+                [
+                    'date' => '2025-04-07',
+                    'description' => 'Cuti Bersama Idul Fitri',
+                    'type' => 'collective_leave',
+                    'created_at' => $now,
+                    'updated_at' => $now
+                ],
+                [
+                    'date' => '2025-05-13',
+                    'description' => 'Cuti Bersama Hari Raya Waisak 2569 BE',
+                    'type' => 'collective_leave',
+                    'created_at' => $now,
+                    'updated_at' => $now
+                ],
+                [
+                    'date' => '2025-05-30',
+                    'description' => 'Cuti Bersama Kenaikan Yesus Kristus',
+                    'type' => 'collective_leave',
+                    'created_at' => $now,
+                    'updated_at' => $now
+                ],
+                [
+                    'date' => '2025-06-09',
+                    'description' => 'Cuti Bersama Idul Adha 1446 Hijriah',
+                    'type' => 'collective_leave',
+                    'created_at' => $now,
+                    'updated_at' => $now
+                ],
+                [
+                    'date' => '2025-12-26',
+                    'description' => 'Cuti Bersama Kelahiran Yesus Kristus',
+                    'type' => 'collective_leave',
+                    'created_at' => $now,
+                    'updated_at' => $now
+                ],
+            ];
+
+            DB::table('holiday_calendars')->insert($holidays);
+        }
+    }