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Time zone converter

Convert a time between cities and time zones, daylight saving time included, and follow the current time around the world live.

  • Free
  • No sign-up
  • No file uploaded
  • Windows, Mac, Android, iPhone

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About this tool

What time is it in New York, Tokyo or Lagos? Pick your cities for a live world clock, or enter a date and time to convert it into every time zone, daylight saving time included.

When to use it

Calling family or clients abroad

Make sure it isn't 3 a.m. for the person you're calling.

Online events

A webinar announced for 5 p.m. London time? See your local time instantly.

Travel and flights

Work out the local arrival time and prepare for jet lag.

How to use

  1. Choose the starting time zone.
  2. Keep the current time or enter a date and time.
  3. Add the cities to compare.

How it works

Conversions use the IANA time zone database built into your browser, which knows every country's daylight saving rules and their history.

A time that does not exist (spring forward) is moved forward one hour; a repeated time (fall back) gives its first occurrence. Your cities are remembered on this device.

Tips for best results

  • Untick “live” to convert a specific time.
  • Countries change clocks on different dates: the gap between London and New York changes for a few weeks in March and October/November.
  • The “previous day” and “next day” labels flag a date change.
  • Copy the list of times to paste into an invitation.
  • The “All time zones” list has every IANA zone if your city is not among the main ones.

Common problems and fixes

The time difference looks one hour off

One country is on daylight saving time and the other is not: the tool accounts for it on the chosen date.

My city is not listed

Look for your zone's reference city under “All time zones” (for example America/Chicago for US Central time).

The starting time is not mine

The starting zone is your device's zone; change it in the list if needed.

Frequently asked questions

Is daylight saving time included?

Yes, for every city, using the rules in force on the chosen date.

What is the difference between UTC and GMT?

For civil time, none in practice: UTC is the scientific reference, GMT the historical name.

How many cities can I add?

Up to 25.

Why do some zones have a 30-minute offset?

India (UTC+5:30), Iran and Nepal chose non-whole-hour offsets.

Related searches

Still stuck?

Ask on the forum: the category, the tool, your device sheet and the test result will be filled in for you.