Изменил форматирование даты в сообщениях

app/users/chat/router.py

@@ -72,7 +72,7 @@ async def get_last_message(chat_id: int, user: Users = Depends(get_current_user)
     if message is None:
         raise MessageNotFoundException
     for mes in message:
-        mes['created_at'] = mes['created_at'].isoformat()
+        mes['created_at'] = mes['created_at'].strftime("%H:%M, %d %B %Y")
     return message
 
 
@@ -89,5 +89,5 @@ async def get_some_messages(
     if not messages:
         raise MessageNotFoundException
     for mes in messages:
-        mes['created_at'] = mes['created_at'].isoformat()
+        mes['created_at'] = mes['created_at'].strftime("%H:%M, %d %B %Y")
     return messages

app/users/chat/websocket.py

@@ -27,7 +27,7 @@ class ConnectionManager(WebSocket):
     async def broadcast(self, user_id: int, chat_id: int, message: str):
         new_message = await self.add_message_to_database(user_id=user_id, chat_id=chat_id, message=message)
         new_message = dict(new_message)
-        new_message['created_at'] = new_message['created_at'].isoformat()
+        new_message['created_at'] = new_message['created_at'].strftime("%H:%M, %d %B %Y")
         for websocket in self.active_connections[chat_id]:
             await websocket.send_json(new_message)