diff --git a/gapi/calendar_api.py b/gapi/calendar_api.py
index 3276664..3ba44e4 100644
--- a/gapi/calendar_api.py
+++ b/gapi/calendar_api.py
@@ -13,13 +13,13 @@ else:
 flags = argparse.ArgumentParser(parents=[tools.argparser]).parse_args()
 APPLICATION_NAME = 'Google Calendar API Python'
 
-SUN = 0
-MON = 1
-TUE = 2
-WED = 3
-THU = 4
-FRI = 5
-SAT = 6
+SUN = 6
+MON = 0
+TUE = 1
+WED = 2
+THU = 3
+FRI = 4
+SAT = 5
 
 
 def to_dateTime(datetime: datetime.datetime):
@@ -147,6 +147,7 @@ class Event:
         self.name = name
         self.description = description
         self.location = location
+        self.recurrence = recurrence
         self.id = id
         if reminders is None:
             self.reminders = {'useDefault': True}
@@ -169,13 +170,13 @@ class Event:
             })
 
     def add_weekly_recurrence(self, until: datetime.datetime, *days):
+        if not until.tzinfo:
+            until = until.astimezone()
         ret = rrule.rrule(freq=rrule.WEEKLY, dtstart=self.start,
                           wkst=SUN, until=until, byweekday=days)
         ret_str = str(ret).split('\n')[-1]
         ret_str = re.sub(r'(UNTIL=[^;]+)', r'\1Z', ret_str)
-        try:
-            self.recurrence
-        except AttributeError:
+        if self.recurrence is None:
             self.recurrence = []
         self.recurrence.append(ret_str)
 
@@ -268,4 +269,6 @@ if __name__ == "__main__":
         path, 'client_secret.json', path), path)
     cal_id = 'raphael.roberts48@gmail.com'
     e2 = Event.from_id(my_api, cal_id, 'qmrsd88ma8ko67ri98d8pbhd7s')
+    until = datetime.datetime.today() + datetime.timedelta(days=20)
+    e2.add_weekly_recurrence(until, MON, TUE)
     # e2.upload(my_api, cal_id)