Upload server.py

server.py

@@ -5,7 +5,7 @@ import json
 import os
 import re
 import uuid
-from datetime import date, datetime, timedelta
+from datetime import date, datetime, timedelta, timezone
 from decimal import Decimal, ROUND_HALF_UP, getcontext
 from pathlib import Path
 from typing import Any, Dict, List, Optional, Tuple
@@ -885,6 +885,9 @@ def api_invoice_summary() -> Any:
 
     def normalize_issued_at(value: Any) -> Optional[datetime]:
         if isinstance(value, datetime):
+            tzinfo = value.tzinfo
+            if tzinfo is not None and tzinfo.utcoffset(value) is not None:
+                return value.astimezone(timezone.utc).replace(tzinfo=None)
             return value
         if isinstance(value, str):
             candidate = value.strip()