Convert UTC or GMT time to your local time. Shows the local date, whether the day shifts across midnight, your offset and Unix seconds. All processing runs locally in your browser. Your data is not uploaded to any server.
100% Local Processing
How to Use
Paste a UTC time and get your local time back. The tool also tells you whether the conversion crosses midnight, which is the mistake most people make.
Steps
Paste a UTC time, a date, or a Unix timestamp into the input box.
Optionally pick a zone to show alongside your local time.
Click Convert and check whether the calendar date shifted.
What you can paste
A UTC wall clock such as 2026-09-20 14:30 or 14:30:00.
ISO 8601 strings with a Z or an offset.
Unix timestamps in seconds or milliseconds.
RFC 2822 strings such as Sun, 20 Sep 2026 14:30:00 GMT.
Features
The date-shift warning catches the classic off-by-one-day bug.
Your offset is read from the browser, so it is always correct.
Weekday is shown for both the UTC and the local date.
All processing runs locally in your browser. Your data is not uploaded to any server.