Time zone converter
Calculator
The calculator needs JavaScript. The tables below give the same numbers for common cases.
How it is worked out
- The time is converted to UTC using the first zone's offset on that date (daylight saving included), then to the second zone's offset.
- Offsets come from your browser's time zone database, so they follow the rules for the date you pick.
| Inputs | Answer |
|---|---|
| Date: 2026-11-13; Time: 09:00; From: New York (Eastern); To: London | 09:00 on Friday, November 13, 2026 in New York (Eastern) is 14:00 on Friday, November 13, 2026 in London. |
| Date: 2026-07-04; Time: 15:30; From: Los Angeles (Pacific); To: Tokyo | 15:30 on Saturday, July 4, 2026 in Los Angeles (Pacific) is 07:30 on Sunday, July 5, 2026 in Tokyo. |
| Date: 2026-03-10; Time: 12:00; From: Paris / Berlin (Central European); To: Sydney | 12:00 on Tuesday, March 10, 2026 in Paris / Berlin (Central European) is 22:00 on Tuesday, March 10, 2026 in Sydney. |
How to use it
The time is converted to UTC using the first zone's offset on that date, daylight saving included, and then to the second zone's offset. 09:00 in New York on 13 November 2026 (UTC−5) is 14:00 in London (UTC+0).
Offsets come from the time zone database in your browser, so they follow the rules in force on the date you choose, including the weeks when countries are on different daylight saving rules.
Frequently asked questions
What is 9 am New York in London?
In winter 14:00; in some weeks of March and October the gap differs because the two countries change clocks on different dates.
Does it handle daylight saving?
Yes, for the date you enter.
What does UTC mean?
Coordinated Universal Time, the reference for time zones.
Method: standard arithmetic shown step by step; no outside data is used. Checked 2026-11-12.
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General information only. Results are plain arithmetic on the numbers you enter; check anything important (money, health, school work) against your own records or the official source.