use correct timezone

debian/usr/sbin/foodoord_oben

@@ -1,6 +1,7 @@
 #!/usr/bin/env python3
 # vim: ts=2 sw=2 et
 
+import datetime
 import grp
 import json
 import os
@@ -12,7 +13,7 @@ import threading
 import time
 from configparser import ConfigParser
 from dataclasses import dataclass
-from datetime import datetime
+from zoneinfo import ZoneInfo
 
 import paho.mqtt.client as mqtt
 import pifacedigitalio
@@ -148,9 +149,13 @@ class Foodoord:
                 self.pifacedigital.leds[gpio].turn_off()
 
     def doorbell(self, event):
-        day = datetime.now().weekday()
-        # NOTE: Monday is 0; do not unlock on Wednesday
-        if self.status_open and day != 2:
+        # ignore doorbell button on Wednesdays
+        now = datetime.datetime.now(ZoneInfo("Europe/Berlin"))
+        if ((now.isoweekday() == 3 and now.time() >= datetime.time(14))
+                or (now.isoweekday() == 4 and now.time() < datetime.time(2))):
+            return
+
+        if self.status_open:
             self.pifacedigital.relays[self.RELAYS_UNLOCK].toggle()
             time.sleep(2)
             self.pifacedigital.relays[self.RELAYS_UNLOCK].toggle()