Convert Time Zones

Pick a time in one city and see the same moment in another city, with daylight saving and the date change handled.

Dates & TimeWorldwideSource: IANA tz database in your browser; Open-Meteo time zone lookupFree, no sign-up

Loading the time-zone converter…

How to convert a time between time zones

Choose the 'from' city. Quick-pick a city or type any city or town and press Find.
Choose the 'to' city. The same way.
Set the date and time. Enter the time as it reads in the first city.
Read the converted time. The same moment in the second city, with the day change and the hour difference.

10 times you need to convert a time between cities

Scheduling a video call

A manager in Chicago sets a 9 AM meeting and checks what time it is for a colleague in London.

Catching a live event

A fan in Karachi works out when a 7 PM New York game starts locally.

Calling family abroad

Someone in Dubai checks it is not the middle of the night in Toronto before calling.

Flight arrival times

A traveller converts a departure time to see the local time at the destination.

Webinar invitations

An organiser lists a webinar's time in several cities.

Remote job interviews

A candidate converts an interview time given in the employer's zone.

Trading hours

An investor checks when a foreign stock exchange opens in their own time.

Online classes

A student abroad converts a lecture time from their university's time zone.

Customer support hours

A shopper checks whether an overseas support line is open now.

Daylight-saving weeks

Someone checks the gap between US and European cities during the weeks when only one has changed clocks.

Where the time-zone rules come from

The conversion uses the IANA time-zone database built into your browser, which holds each zone's offset from UTC and its daylight-saving rules, past and scheduled. The page finds the UTC instant for your date and time in the first city, then shows that instant in the second city.

Quick-pick cities need no lookup. A typed city is found with Photon (OpenStreetMap geocoding) and its time zone with Open-Meteo; only the place name and its coordinates are sent.

Limits: a time that does not exist on a spring-forward night is moved to the first valid time. If a government changes its time-zone rules at short notice, your browser's copy of the database may not have the change yet.

Sources

Frequently asked questions

How do I convert a time from one time zone to another?

Find the UTC time for the first zone, then apply the second zone's offset. Pick both cities and the time here and the page does it, including daylight saving.

Does it handle daylight saving time?

Yes, for the date you choose, in both cities.

Why does the result say 'next day'?

When the second city is far enough ahead, the same moment falls on the next calendar day there.

What is the difference between EST and EDT?

EST is UTC−5, used in winter; EDT is UTC−4, used in summer. The result shows which applies on your date.

Can I convert to UTC or GMT?

Yes, pick 'UTC / GMT' in the quick list.

How is this different from the time difference calculator?

This page converts one time between two cities. The time difference calculator compares the current time across several cities at once.