diff --git a/addons/microsoft_calendar/utils/microsoft_calendar.py b/addons/microsoft_calendar/utils/microsoft_calendar.py
index f47f0c3e7ef..beca7cf38b9 100644
--- a/addons/microsoft_calendar/utils/microsoft_calendar.py
+++ b/addons/microsoft_calendar/utils/microsoft_calendar.py
@@ -7,6 +7,7 @@ import logging
 
 from werkzeug import urls
 
+from odoo import fields
 from odoo.addons.microsoft_calendar.utils.microsoft_event import MicrosoftEvent
 from odoo.addons.microsoft_account.models.microsoft_service import TIMEOUT
 
@@ -36,8 +37,8 @@ class MicrosoftCalendarService():
         if sync_token:
             params['$deltatoken'] = sync_token
         else:
-            params['startDateTime'] = '2016-12-01T00:00:00Z'
-            params['endDateTime'] = '2030-1-01T00:00:00Z'
+            params['startDateTime'] = fields.Datetime.subtract(fields.Datetime.now(), years=2).strftime("%Y-%m-%dT00:00:00Z")
+            params['endDateTime'] = fields.Datetime.add(fields.Datetime.now(), years=2).strftime("%Y-%m-%dT00:00:00Z")
         try:
             status, data, time = self.microsoft_service._do_request(url, params, headers, method='GET', timeout=timeout)
         except requests.HTTPError as e: