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BlogHow it works

EST to JST Converter

Choose a date and an Eastern time to see the time in Tokyo, Osaka or Yokohama. Japan has no daylight saving, so the converter only follows the US clock changes.

Eastern Time

ESTEastern Time

JSTJapan Standard Time

––:––

  1. Dec 31, 2025 – Mar 8, 2026EST UTC−5 · JST UTC+9Difference: +14 h
  2. Mar 8, 2026 – Nov 1, 2026EDT UTC−4 · JST UTC+9Difference: +13 h
  3. Nov 1, 2026 – Mar 14, 2027EST UTC−5 · JST UTC+9Difference: +14 h
  4. Mar 14, 2027 – Nov 7, 2027EDT UTC−4 · JST UTC+9Difference: +13 h
  5. Nov 7, 2027 – Dec 31, 2027EST UTC−5 · JST UTC+9Difference: +14 h

Offsets in 2026 – 2027, from the IANA time zone data in your browser's engine

Two gaps, set by New York

Japan Standard Time is UTC+9 and has been for decades; the IANA time zone database shows that Japan's last summer time ended in 1951. All the movement in the gap comes from the US, which switches on the second Sunday in March and the first Sunday in November under the rules the US Department of Transportation oversees.

So Tokyo is 14 hours ahead of New York in the US winter and 13 hours ahead in the US summer. With a gap that large, the date in Tokyo is a day ahead for most of the New York day: from 10:00 AM EST or 11:00 AM EDT onward, Tokyo has already moved to tomorrow.

New York to Tokyo hour table

EST timeEST · JSTEDT · JST
12:00 AM2:00 PM1:00 PM
1:00 AM3:00 PM2:00 PM
2:00 AM4:00 PM3:00 PM
3:00 AM5:00 PM4:00 PM
4:00 AM6:00 PM5:00 PM
5:00 AM7:00 PM6:00 PM
6:00 AM8:00 PM7:00 PM
7:00 AM9:00 PM8:00 PM
8:00 AM10:00 PM9:00 PM
9:00 AM11:00 PM10:00 PM
10:00 AM12:00 AM+1 next day11:00 PM
11:00 AM1:00 AM+1 next day12:00 AM+1 next day
12:00 PM2:00 AM+1 next day1:00 AM+1 next day
1:00 PM3:00 AM+1 next day2:00 AM+1 next day
2:00 PM4:00 AM+1 next day3:00 AM+1 next day
3:00 PM5:00 AM+1 next day4:00 AM+1 next day
4:00 PM6:00 AM+1 next day5:00 AM+1 next day
5:00 PM7:00 AM+1 next day6:00 AM+1 next day
6:00 PM8:00 AM+1 next day7:00 AM+1 next day
7:00 PM9:00 AM+1 next day8:00 AM+1 next day
8:00 PM10:00 AM+1 next day9:00 AM+1 next day
9:00 PM11:00 AM+1 next day10:00 AM+1 next day
10:00 PM12:00 PM+1 next day11:00 AM+1 next day
11:00 PM1:00 PM+1 next day12:00 PM+1 next day
Each Eastern hour with the Tokyo time under EST and EDT. +1 marks the next day in Japan.

The evening call

Office hours in New York and Tokyo do not overlap at all. The usual choice is a New York evening call, which lands on the Tokyo morning: 7:00 PM Eastern is 9:00 AM in winter or 8:00 AM in summer. A New York team that wants to stay within the working day can take 8:00 AM, which is 10:00 PM or 9:00 PM in Tokyo, late but not impossible for a short call.

Recurring meetings booked in Tokyo time move by one hour for the New York side each March and November. If a weekly call is set for 9:00 AM JST, it sits at 7:00 PM EST in winter but 8:00 PM EDT in summer.

Japanese holidays to plan around

  • New Year, about Dec 29 to Jan 3
  • Golden Week, late April to early May
  • Obon, mid-August
  • Coming of Age Day in January
  • Marine Day in July
  • Respect for the Aged Day in September

The live Seoul clock shows the same time as Tokyo, since Korea is also UTC+9. Use JST to EST to convert from the Japanese side.

EST to JST questions

How many hours ahead of New York is Tokyo?

14 hours from early November to mid-March and 13 hours from mid-March to early November.

What is 7:00 PM EST in Japan?

9:00 AM the next day in Tokyo. During EDT, 7:00 PM in New York is 8:00 AM the next day.

Will Tokyo change its clocks when New York does?

No. Japan stays on JST, UTC+9, all year, so the gap moves only on the US dates. Japan last used summer time from 1948 to 1951.

Is it easier to subtract for Tokyo to New York?

From New York to Tokyo, a trick is to subtract 10 hours (winter) or 11 hours (summer) and move one day forward. 7:00 PM minus 10 hours is 9:00 AM, on the next day.