How to use the Timezone Converter?
The Timezone Converter supports 400+ IANA-standard time zones from every country and region. Select a source time zone from the searchable dropdown, enter the date and time you want to convert, then choose a target time zone — the result appears instantly. The swap button reverses the direction in one click. Day-boundary crossings are handled correctly: converting 11 PM in New York to Tokyo shows the correct time on the following calendar day.
As remote work, international travel, and globally distributed teams become standard, timezone conversions are a daily necessity. Scheduling a video call between New York (EDT), London (BST), and Seoul (KST) requires understanding three-way time overlaps. Watching a live event broadcast at a specific UTC time means converting to your local timezone. Missing a timezone conversion can result in a missed meeting, a late flight, or a mistimed trade — the cost of getting it wrong is real.
All conversions use the browser built-in Intl.DateTimeFormat API with the full IANA timezone database, so daylight saving time (DST) transitions are handled automatically for every region. DST schedules differ by country: the US switches in March and November, Europe in March and October, and countries near the equator generally do not observe DST at all. The live world clock shows current times in 6 major cities — New York, London, Paris, Dubai, Tokyo, and Sydney — updated every second.