Time Zone Converter
Convert a date and time between any two time zones, with daylight saving handled automatically.
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- Source time
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- UTC
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- Difference
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- Unix timestamp
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The same moment around the world
| City | Time | Date | UTC offset |
|---|---|---|---|
| UTC | — | — | — |
| Los Angeles | — | — | — |
| New York | — | — | — |
| London | — | — | — |
| Paris | — | — | — |
| Johannesburg | — | — | — |
| Dubai | — | — | — |
| Mumbai | — | — | — |
| Shanghai | — | — | — |
| Tokyo | — | — | — |
| Sydney | — | — | — |
How it works
Pick a date and a time, choose the time zone it belongs to and the time zone you want it in — the converted time appears instantly, along with the UTC equivalent, the exact difference between the two zones and a world clock showing that same moment in eleven major cities. Every zone is a real IANA time zone, so daylight saving time is applied automatically for the date you entered: convert a July date and London is UTC+1, convert a January date and London is UTC+0, with no manual adjustment from you.
The tool also flags the two awkward cases most converters silently get wrong. When clocks
jump forward, the hour you typed may not exist at all in that zone; when they fall back,
the same wall-clock time happens twice. In both cases you get a plain-English note instead
of a wrong answer. All the maths uses your browser's built-in time zone database
(Intl.DateTimeFormat) — nothing is sent to a server, there is no API key and
no request leaves your device, so meeting times and travel plans stay private.
Frequently asked questions
How do I convert a time from one time zone to another?
Enter the date and the time, choose the time zone that time belongs to under "From", then pick the zone you want it in under "To". The converted time, the matching date, the UTC equivalent and the exact difference between the two zones appear instantly, together with a world clock showing that same moment in 11 major cities. Use Swap to reverse the direction and the 12-hour toggle if you prefer AM/PM.
Does this time zone converter handle daylight saving time?
Yes. Every zone is a real IANA time zone, so daylight saving is applied for the exact date you enter — London is UTC+1 in July and UTC+0 in January without any manual adjustment. It also flags the two DST edge cases: if the time you typed does not exist because the clocks jump forward, or happens twice because they go back, you get a plain-English note instead of a silently wrong answer.
What time is it in New York when it's 9 AM in London?
9 AM in London is 4 AM in New York, because New York is normally five hours behind. That holds all year except for the two short windows in late March and late October/November when Europe and the United States switch to or from daylight saving on different dates and the gap becomes four or six hours — enter the exact date above and the converter uses the correct offset for that day.