Switch to UTC timestamps, output in local time

src/ddns_service/server.py

@@ -8,13 +8,12 @@ import json
 import logging
 import signal
 import ssl
-from datetime import datetime
 from http.server import BaseHTTPRequestHandler, ThreadingHTTPServer
 from urllib.parse import parse_qs, urlparse
 
 import argon2
 
-from . import datetime_str
+from . import datetime_str, utc_now
 from .cleanup import ExpiredRecordsCleanupThread, RateLimitCleanupThread
 from .logging import clear_txn_id, set_txn_id
 from .models import DoesNotExist, get_hostname_for_user, get_user
@@ -316,7 +315,7 @@ class DDNSRequestHandler(BaseHTTPRequestHandler):
             except ValueError:
                 return (400, "badip")
 
-        now = datetime.now(datetime.timezone.utc)
+        now = utc_now()
 
         changed = False
         if ipv4: