added datetime tracking

app/main.py

@@ -2,6 +2,7 @@ import signal
 import sys
 import os
 import logger
+import utils
 from server import Server
 
 def _handle_exit(sig, frame):
@@ -30,10 +31,13 @@ def main():
     port = _get_environment_variable("PORT")
     cache_duration = _get_environment_variable("CACHE_DURATION")
     ics_url = _get_environment_variable("ICS_URL")
+    time_zone = _get_environment_variable("TIME_ZONE")
 
     port_int = _parse_environment_variable("PORT", port)
     cache_duration_int = _parse_environment_variable("CACHE_DURATION", cache_duration)
 
+    utils.set_time_zone(time_zone)
+
     server = Server(host, port_int, cache_duration_int, ics_url)
     server.serve()