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Time zone converter

Convert a date and time between world time zones, with daylight saving handled automatically.

Convert time

Pick a moment and two zones.

Converted time
-

Pick a date and time to convert.

Daylight saving included: conversions use your browser's time zone database, so EST vs. EDT and friends are picked correctly for the date you enter.
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Meeting-friendly conversions

  • New York to London: +5 hours in winter, +4 in summer.
  • New York to Tokyo: +13 or +14 hours, often the next day.
  • Los Angeles to New York: +3 hours, year round.
  • UTC never observes daylight saving, which makes it the safe anchor for scheduling.

Why dates sometimes shift

Time zones wrap around the planet, so a conversion can cross midnight. That is normal: 9 AM Monday in New York really is 10 PM Monday in Tokyo. The converter always shows the weekday so the shift is obvious.

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Time zone converter FAQs

Does the converter handle daylight saving time?
Yes. Conversions use the IANA time zone database built into your browser, so daylight saving transitions are applied automatically for the exact date you enter.
What is the difference between EST and EDT?
EST (Eastern Standard Time, UTC-5) is the winter clock; EDT (Eastern Daylight Time, UTC-4) is the summer clock. The converter picks the right one for your date automatically.
Why do some conversions shift the date?
Time zones span the globe, so converting can cross midnight. A 9 AM meeting in New York is 10 PM the same day in Tokyo, but 2 PM in London.
What time zones are included?
The converter covers the major US zones (Eastern, Central, Mountain, Pacific, Alaska, Hawaii), UTC, and key European, Middle Eastern, Asian and Oceanian zones.
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