Update memory_utils.py

memory_utils.py

@@ -1,7 +1,7 @@
 # memory_utils.py
 import json
 import pandas as pd
-from datetime import datetime
+from datetime import datetime, timezone
 from pathlib import Path
 from typing import Optional, List, Dict, Any
 
@@ -24,7 +24,7 @@ def save_memory(summary: str):
     Append a new memory summary to the JSONL file.
     Each line is a JSON object: {"timestamp": "...", "summary": "..."}
     """
-    entry = {"timestamp": datetime.now().isoformat(), "summary": summary}
+    entry = {"timestamp": datetime.now(timezone.utc).strftime('%Y-%m-%d %H:%M:%S'), "summary": summary}
     with open(MEMORY_FILE, "a", encoding="utf-8") as f:
         f.write(json.dumps(entry) + "\n")