Switch to UTC timestamps, output in local time

src/ddns_service/__init__.py

@@ -27,11 +27,18 @@ __all__ = [
 
 DATETIME_FORMAT = "%Y-%m-%d %H:%M:%S %Z"
 
+
 def datetime_str(dt, utc=False):
     if not isinstance(dt, datetime.datetime):
         return "Never"
 
+    aware_dt = dt.replace(tzinfo=datetime.UTC) if not dt.tzinfo else dt
+
     if utc:
-        return timestamp.strftime(DATETIME_FORMAT)
+        return aware_dt.strftime(DATETIME_FORMAT)
     else:
-        return timestamp.astimezone().strftime(DATETIME_FORMAT)
+        return aware_dt.astimezone().strftime(DATETIME_FORMAT)
+
+
+def utc_now():
+    return datetime.datetime.now(datetime.UTC).replace(tzinfo=None)