🌐Time Zone Converter
Compare a time across multiple time zones at once, with automatic DST handling.
Free time zone converter
Scheduling across time zones? Our free time zone converter shows you the answer instantly. Pick a date, a time, and a starting zone, then add as many target zones as you need — each one displays the converted local time, so you can compare New York, London, and Mumbai at a glance instead of counting offsets on your fingers.
It gets the hard part right: daylight saving time is handled automatically for the date you choose, so a 3 PM meeting converts correctly in March and November alike. When a conversion crosses midnight, a clear day badge shows you it's tomorrow — or yesterday — there. Quick picks cover the zones people use most, and a swap button flips the direction.
Simply pick a time and your zones to convert instantly. No sign-up, no downloads, no limits.
About the Time Zone Converter
Features
Multi-zone comparison
Add as many target zones as you need; all update together.
DST-correct
Offsets are calculated for your chosen date via the Intl API — never a fixed offset.
Day-shift badges
A +1d or -1d badge flags when a conversion lands on a different calendar day.
Quick picks
One-tap buttons for the most commonly used zones.
Swap
Flip the source zone with a target zone in one click.
Copy
Copy any converted time to your clipboard.
Why fixed offsets fail
Many time zone tools use a fixed UTC offset per zone, which quietly breaks for half the year in any zone that observes daylight saving time. This converter instead reads your browser's built-in IANA time zone database through the Intl API for the exact date you choose, so the offset — and the resulting converted time — is always correct for that specific date, on both sides of a DST transition.
Frequently Asked Questions
How does the time zone converter work?
Pick a date, time, and source time zone, then add one or more target zones. Each target instantly shows the converted local time, its UTC offset, and whether the date shifts by a day.
Is it free?
Yes, completely free with no sign-up and no limits.
Which time zones are included?
All IANA time zones supported by your browser — hundreds of zones covering every country and major city, searchable by typing.
Does it handle daylight saving time?
Yes. Offsets are calculated for the specific date you choose using your browser's built-in time zone database, so a conversion in January and the same conversion in July correctly reflect whichever zones observe daylight saving at that time of year.
Why does the date change on some results?
A +1d or -1d badge appears when the converted time falls on the next or previous calendar day in that zone — for example, 11 PM in New York is already the next morning in Tokyo. This makes it obvious when you're scheduling something that crosses midnight somewhere.
Can I compare multiple zones at once?
Yes, add as many target zones as you like using the quick-pick buttons or the search box, and every result updates together whenever you change the source date, time, or zone.
What is UTC?
UTC (Coordinated Universal Time) is the time standard the world's time zones are defined relative to. It doesn't observe daylight saving time, which makes it a useful fixed reference point when coordinating across zones.
How accurate are the offsets?
Offsets come directly from your browser's built-in time zone database (the same one used by your operating system), which is regularly updated to reflect real-world daylight saving and time zone rule changes.
Is any of my data stored or sent anywhere?
No. All conversion happens locally in your browser using the Intl API. Nothing is sent to a server, stored, or logged.
Does it work on mobile?
Yes, the tool is fully responsive and works on any modern phone, tablet, or desktop browser.