UTC is the default timezone for Render instances, I’m not quite clear where you’re seeing the other timestamp.
Please could you share some specific details of the issue you are experiencing that may help us troubleshoot it with you, e.g. service name/ID, more complete logging/error messages, reproduction steps, etc.
If you don’t want to share these details on the community forum, please feel free to raise a ticket using the “Help” or “Contact Support” links while logged into the Dashboard.