JST to EST Converter

Japan Standard Time → Eastern Standard Time · JST is 14 hours ahead of EST

JST
—
EST
—

JST and EST are the same time

JST to EST Conversion Table

JSTEST
12:00 AM12:00 AM
1:00 AM1:00 AM
2:00 AM2:00 AM
3:00 AM3:00 AM
4:00 AM4:00 AM
5:00 AM5:00 AM
6:00 AM6:00 AM
7:00 AM7:00 AM
8:00 AM8:00 AM
9:00 AM9:00 AM
10:00 AM10:00 AM
11:00 AM11:00 AM
12:00 PM12:00 PM
1:00 PM1:00 PM
2:00 PM2:00 PM
3:00 PM3:00 PM
4:00 PM4:00 PM
5:00 PM5:00 PM
6:00 PM6:00 PM
7:00 PM7:00 PM
8:00 PM8:00 PM
9:00 PM9:00 PM
10:00 PM10:00 PM
11:00 PM11:00 PM

Green rows = business hours overlap (9:00 AM – 6:00 PM JST)

Major JST Cities
  • Tokyo
  • Osaka
  • Yokohama
  • Nagoya
  • Sapporo
  • Fukuoka
Major EST Cities
  • New York, NY
  • Miami, FL
  • Boston, MA
  • Atlanta, GA
  • Washington D.C.
  • Toronto, Canada
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JST vs EST — What You Need to Know

Japan Standard Time (JST) is UTC+9. Japan does not observe Daylight Saving Time — JST is fixed year-round.

Eastern Standard Time (EST) is UTC-5 (EDT: UTC-4 from March to November).

The 14-hour gap makes Japan–US East Coast scheduling challenging. The best overlap window is the evening in New York aligning with the Japan morning: 8:00–11:00 PM EST = 10:00 AM–1:00 PM JST next day. Alternatively, Japan end-of-day (5:00–7:00 PM JST) = 3:00–5:00 AM EST, which rarely works.

Japanese business with the US East Coast relies heavily on early-morning calls in New York.

Note on DST shift:

The gap changes when the US observes EDT (March–November): 14h → 13h. Japan stays at UTC+9 year-round with no DST.

Frequently Asked Questions

How many hours ahead is JST compared to EST?

JST (UTC+9) is 14 hours ahead of EST (UTC-5) during US standard time, and 13 hours ahead during EDT (UTC-4). Japan does not observe DST.

When it is 9:00 AM in Tokyo (JST), what time is it in New York?

When it is 9:00 AM JST, it is 7:00 PM EST the previous day (19:00). During EDT, 9:00 AM JST = 8:00 PM EDT the previous day.

What is the best time to call between Japan and the US East Coast?

The most practical window is 8:00–11:00 PM EST (New York time), which corresponds to 10:00 AM–1:00 PM JST next day in Tokyo. This requires US participants to work evening hours.

Does Japan observe Daylight Saving Time?

No. Japan abolished DST in 1952 and has not used it since. JST is fixed at UTC+9 year-round, so the time difference with DST-observing countries changes twice per year.