diff --git a/src/modules/season-related/season-period/domain/usecases/managers/index-holiday-google-calendar.manager.ts b/src/modules/season-related/season-period/domain/usecases/managers/index-holiday-google-calendar.manager.ts
new file mode 100644
index 0000000..e1c52c3
--- /dev/null
+++ b/src/modules/season-related/season-period/domain/usecases/managers/index-holiday-google-calendar.manager.ts
@@ -0,0 +1,53 @@
+import { Injectable } from '@nestjs/common';
+import { google } from 'googleapis';
+
+@Injectable()
+export class IndexHolidayCalendarManager {
+  async execute() {
+    const events = [];
+    const calendar = google.calendar({
+      version: 'v3',
+      auth: 'AIzaSyCsCt6PDd6uYLkahvtdvCoMWf-1_QaLiNM',
+    });
+    const calendarId = 'id.indonesian#holiday@group.v.calendar.google.com';
+
+    const res = await calendar.events.list({
+      calendarId: calendarId,
+      timeMin: new Date().getFullYear() + '-01-01T00:00:00Z',
+      timeMax: new Date().getFullYear() + '-12-31T23:59:59Z',
+      singleEvents: true,
+      orderBy: 'startTime',
+    });
+
+    res.data.items?.forEach((item) => {
+      //   const eventName = item.summary.replace("Joint", "").replace("for", "").replace("after", "").replace("Holiday","").trim();
+      let eventName = item.summary.replace('Cuti Bersama', '').trim();
+
+      // function ini untuk menyamakan dan menggabungkan Hari Libur
+      if (eventName == 'Hari Idul Fitri')
+        eventName = eventName.replace('Hari', '').trim();
+      else if (eventName == 'Natal (Hari Tinju)' || eventName == 'Malam Natal')
+        eventName = 'Hari Raya Natal';
+
+      const exist = events.find((event) => {
+        return event.name.toLowerCase().includes(eventName.toLowerCase());
+      });
+
+      if (exist) {
+        Object.assign(exist, {
+          end_date: item.start.date,
+          total_day: exist.total_day + 1,
+        });
+      } else {
+        events.push({
+          name: eventName,
+          start_date: item.start?.date,
+          end_date: item.start?.date,
+          total_day: 1,
+        });
+      }
+    });
+
+    return events;
+  }
+}