Time zone converter
One moment, read on every clock at once.
Showing Sunday, 23 August 2026 at 12:00 in London (UTC+01:00). This is a fixed moment, not the current time — press Now for that.
- HonoluluHST · UTC−10:0001:00
- AnchorageAKDT · UTC−08:0003:00
- Los AngelesPDT · UTC−07:0004:00
- PhoenixMST · UTC−07:0004:00
- VancouverPDT · UTC−07:0004:00
- DenverMDT · UTC−06:0005:00
- Mexico CityCST · UTC−06:0005:00
- BogotáUTC−05:0006:00
- ChicagoCDT · UTC−05:0006:00
- New YorkEDT · UTC−04:0007:00
- TorontoEDT · UTC−04:0007:00
- Buenos AiresUTC−03:0008:00
- São PauloUTC−03:0008:00
- UTCUTC · UTC+00:0011:00
- DublinUTC+01:0012:00
- LagosUTC+01:0012:00
- LisbonUTC+01:0012:00
- LondonUTC+01:0012:00
- AmsterdamUTC+02:0013:00
- BerlinUTC+02:0013:00
- JohannesburgUTC+02:0013:00
- MadridUTC+02:0013:00
- ParisUTC+02:0013:00
- RomeUTC+02:0013:00
- StockholmUTC+02:0013:00
- WarsawUTC+02:0013:00
- AthensUTC+03:0014:00
- CairoUTC+03:0014:00
- IstanbulUTC+03:0014:00
- MoscowUTC+03:0014:00
- NairobiUTC+03:0014:00
- DubaiUTC+04:0015:00
- KarachiUTC+05:0016:00
- DelhiUTC+05:3016:30
- KolkataUTC+05:3016:30
- MumbaiUTC+05:3016:30
- DhakaUTC+06:0017:00
- BangkokUTC+07:0018:00
- JakartaUTC+07:0018:00
- Hong KongUTC+08:0019:00
- PerthUTC+08:0019:00
- ShanghaiUTC+08:0019:00
- SingaporeUTC+08:0019:00
- SeoulUTC+09:0020:00
- TokyoUTC+09:0020:00
- MelbourneUTC+10:0021:00
- SydneyUTC+10:0021:00
- AucklandUTC+12:0023:00
Why this shows a moment, not the current time
Every other page here renders a complete answer before any JavaScript runs, and a live clock is the one thing that cannot: this page was built days before you opened it. So it answers a question that has a permanent answer — when it is this time on this date in this city, what time is it everywhere else? — and offers a Now button for the clock reading. That button appears only if the script loaded, because a button that cannot do anything is worse than no button.
It is also the more useful question most of the time. Scheduling a call means asking what 3pm on Thursday in London is in Chicago, not what time it is right now.
No time zone database ships with this page
Daylight saving rules change several times a year, by government decision and often at short notice. A site that bundles its own copy of the rules is correct until the next change and then quietly wrong — and a cached copy in a service worker can stay wrong for a long time. This page carries a list of city names and asks your own device for the rules, which the browser keeps current. All that ships is a few hundred bytes of names.
The trade is that a device years out of date will be out of date here too. That is the same bargain every application on your phone makes, and it fails in the safer direction.
The hours that happen twice, and not at all
When clocks go forward, an hour is skipped — ask for 02:30 on that morning in New York and no such moment exists. This page returns the instant that time would have been, which reads as 03:30 locally. When clocks go back, an hour happens twice, and 01:30 is genuinely two different moments; the earlier is used. Both choices match what Temporal, java.time and moment-timezone do, so an answer here can be checked against them.
To measure a span of days rather than convert a moment, the date difference calculator works in calendar dates, where these questions do not arise at all.
