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Time Zone Converter

Convert a time in one city to the time in another. Daylight saving is applied for the date you choose, so the answer is right in the weeks when one place has changed its clocks and the other has not.

Quick examples
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Converted time2:00 PM
Date there
Sun, Oct 11, 2026
Time difference
5 h ahead
From zone offset
UTC−4
To zone offset
UTC+1
In UTC
1:00 PM

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      Formula

      Time there = time here − (offset here) + (offset there)
      Offsets are the hours ahead of or behind UTC on the chosen date

      How to use it

      1. Enter the time and date in the starting zone.
      2. Choose the “from” and “to” locations.
      3. Read the converted time and check the date — it may be the next or previous day.

      Worked examples

      9:00 am in New York on July 15, 2026, in London

      Converted time
      2:00 PM
      Time difference
      5 h ahead
      From zone offset
      UTC−4
      To zone offset
      UTC+1

      6:00 pm in Los Angeles on January 20, 2026, in Tokyo

      Converted time
      11:00 AM
      Date there
      Wed, Jan 21, 2026
      Time difference
      17 h ahead

      Daylight saving catches people out

      The US and Canada change clocks on the second Sunday of March and first Sunday of November. Europe changes on the last Sundays of March and October. For two to three weeks each spring and one week each autumn, New York and London are 4 hours apart instead of 5. Most of Arizona, Hawaii, and countries such as Japan, China and India do not change at all.

      Scheduling across zones

      For a meeting between the US West Coast and Europe, late morning Pacific time is early evening in Central Europe. Between the US East Coast and India, the overlap is early morning Eastern, which is evening in India. Always send the invitation with a named time zone.

      Questions people ask

      What is 9 am Eastern in London?

      2 pm for most of the year. During the short periods when only one side is on daylight saving time it is 1 pm.

      What is the difference between EST and EDT?

      EST is Eastern Standard Time, UTC−5, used in winter. EDT is Eastern Daylight Time, UTC−4, used in summer. Choosing “New York” applies whichever is in force on your date.

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