remove header

'Prefer': 'outlook.timezone="UTC"'

Author: Alejandro Casanovas

O365/calendar.py

@@ -1408,8 +1408,8 @@ def get_occurrences(self, start, end, *, limit=None, query=None, order_by=None,
         params[self._cc('startDateTime')] = start.isoformat()
         params[self._cc('endDateTime')] = end.isoformat()
 
-        response = self.con.get(url, params=params,
-                                headers={'Prefer': 'outlook.timezone="UTC"'})
+        response = self.con.get(url, params=params)
+
         if not response:
             return iter(())
 
@@ -1794,8 +1794,8 @@ def get_events(self, limit=25, *, query=None, order_by=None, batch=None,
             else:
                 params.update(query.as_params())
 
-        response = self.con.get(url, params=params,
-                                headers={'Prefer': 'outlook.timezone="UTC"'})
+        response = self.con.get(url, params=params)
+
         if not response:
             return iter(())
 
@@ -1846,8 +1846,8 @@ def get_event(self, param):
             params.update(param.as_params())
             by_id = False
 
-        response = self.con.get(url, params=params,
-                                headers={'Prefer': 'outlook.timezone="UTC"'})
+        response = self.con.get(url, params=params)
+
         if not response:
             return None
 

O365/connection.py

@@ -83,7 +83,7 @@ def __init__(self, *, protocol_url=None, api_version=None,
          used on api keywords (camelcase / pascalcase)
         :param str protocol_scope_prefix: prefix url for scopes
         :param datetime.timezone.utc or str timezone: preferred timezone, defaults to the
-         system timezone
+         system timezone or fallback to UTC
         :raises ValueError: if protocol_url or api_version are not supplied
         """
         if protocol_url is None or api_version is None: