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Time Zone Converter

Pick a date, a time and its time zone, and see the same moment in other cities, for meetings, calls and deadlines.

Runs in your browser · No uploads

The same moment in

Time zoneTimeUTC offset
  • Nothing leaves your device
  • No server-imposed size limits
  • No sign-up, no watermark
  • Free

How to convert a time between time zones

  1. Choose the date and time, and the time zone it is in (yours is chosen to start).
  2. Read the same moment in the other cities; add or remove cities as you need.
  3. Copy all the times to share them.

Good to know

  • Daylight saving time is worked out for the date you pick, using your browser's own time-zone data, which covers the past and the coming years.
  • Time zones are named after a large city (America/Chicago, Asia/Singapore). Type a city to add it.
  • A "+1 day" or "−1 day" means the date is different there.
  • When clocks go forward, one hour doesn't exist that night; if you pick a time in it, the page says which time is used.

Frequently asked questions

Is UTC the same as GMT?

For everyday use, yes: both have no offset. UTC never changes; the UK uses GMT in winter and BST (UTC+1) in summer.

Is anything sent anywhere?

No. The calculation happens in your browser as you type; nothing is sent anywhere.