Fixed timezone detection bug

app.py

@@ -74,6 +74,12 @@ def get_screen_by_name(self, screen_name):
             return None
 
     def __init__(self):
+        if DEBUG:
+            logging.basicConfig(level=logging.DEBUG, filename=LOGFILE)
+            logging.info("Debug messages enabled")
+        else:
+            logging.basicConfig(filename=LOGFILE)
+
         self.mq = posix_ipc.MessageQueue("/epdtext_ipc", flags=posix_ipc.O_CREAT)
         self.mq.block = False
 
@@ -144,10 +150,5 @@ def loop(self):
                 self.current_screen().print_to_display()
 
 
-if DEBUG:
-    logging.basicConfig(level=logging.DEBUG)
-if LOGFILE:
-    logging.basicConfig(filename=LOGFILE)
-
 app = App()
 app.loop()

screens/calendar.py

@@ -3,7 +3,7 @@
 import caldav
 import logging
 import pytz
-from datetime import date, datetime, timedelta
+from datetime import date, datetime, timedelta, tzinfo
 from icalevents.icalevents import events
 from settings import CALENDAR_URLS, TIMEZONE
 
@@ -13,7 +13,13 @@ def sort_by_date(obj):
 
 
 class Calendar:
-    timezone = pytz.timezone(TIMEZONE)
+    timezone = None
+
+    def __init__(self):
+        if isinstance(TIMEZONE, tzinfo):
+            self.timezone = TIMEZONE
+        else:
+            self.timezone = pytz.timezone(TIMEZONE)
 
     def standardize_date(self, arg, ignore_timezone=False):
         if isinstance(arg, datetime) and (not arg.tzinfo or ignore_timezone):