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JST to EST Converter — Japan to Eastern Time

JST UTC+9
14h
EST UTC-5
Live Current Time
JST
Japan
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EST
US East Coast
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Convert a specific hour
JST
--:-- EST

JST to EST Conversion Table — Standard Time

Offset: JST -14 hours = EST. Applies during standard time. Work hours (9 AM–5 PM) highlighted.

JST EST
00:00 10:00 (−1 day)
01:00 11:00 (−1 day)
02:00 12:00 (−1 day)
03:00 13:00 (−1 day)
04:00 14:00 (−1 day)
05:00 15:00 (−1 day)
06:00 16:00 (−1 day)
07:00 17:00 (−1 day)
08:00 18:00 (−1 day)
09:00 19:00 (−1 day)
10:00 20:00 (−1 day)
11:00 21:00 (−1 day)
12:00 22:00 (−1 day)
13:00 23:00 (−1 day)
14:00 00:00
15:00 01:00
16:00 02:00
17:00 03:00
18:00 04:00
19:00 05:00
20:00 06:00
21:00 07:00
22:00 08:00
23:00 09:00

JST to EDT Conversion Table — Daylight Saving

Offset: JST -13 hours = EDT. Applies when US East Coast is observing daylight saving time.

JST EDT
00:00 11:00 (−1 day)
01:00 12:00 (−1 day)
02:00 13:00 (−1 day)
03:00 14:00 (−1 day)
04:00 15:00 (−1 day)
05:00 16:00 (−1 day)
06:00 17:00 (−1 day)
07:00 18:00 (−1 day)
08:00 19:00 (−1 day)
09:00 20:00 (−1 day)
10:00 21:00 (−1 day)
11:00 22:00 (−1 day)
12:00 23:00 (−1 day)
13:00 00:00
14:00 01:00
15:00 02:00
16:00 03:00
17:00 04:00
18:00 05:00
19:00 06:00
20:00 07:00
21:00 08:00
22:00 09:00
23:00 10:00

Japan and the US East Coast collaborate heavily in automotive, electronics, finance, and gaming. Toyota, Sony, and major trading firms operate across this nearly opposite-day timezone pairing.

JST is 14 hours ahead of EST. When it is 9 AM Monday in Tokyo, it is 7 PM Sunday in New York. The Japanese business day (9 AM–6 PM JST) corresponds to 7 PM–4 AM Eastern, making real-time collaboration during normal hours nearly impossible.

Japan does not observe DST. When the US shifts to EDT in spring, the gap shrinks to 13 hours. This gives a slightly better overlap: a 7 AM Eastern meeting corresponds to 8 PM JST in summer versus 9 PM in winter.

Daylight Saving Time: What Changes

US East Coast observes daylight saving time, but Japan does not. This means the offset between JST and EST changes seasonally: 14 hours during standard time and 13 hours during daylight saving. Double-check the current offset during transition weeks in March and November.

Frequently Asked Questions

What is the time difference between Japan and Eastern Time?

JST is 14 hours ahead of EST during standard time (November–March). When the US shifts to EDT (March–November), the gap narrows to 13 hours. Japan does not observe DST.

Why does the JST-to-EST offset change if Japan has no DST?

Japan’s clock is fixed at UTC+9 year-round. The US East Coast shifts between UTC−5 (EST) and UTC−4 (EDT). When the US springs forward, the gap between the two zones drops by one hour.

How can teams in Tokyo and New York find a workable meeting time?

The narrowest gap is in summer (13 hours). A 7–8 AM Eastern meeting falls at 8–9 PM JST, which is late but feasible. In winter (14-hour gap), that same 7–8 AM Eastern slot is 9–10 PM JST. Many teams rely on async communication and reserve live meetings for critical decisions.

Related Conversions

PST EST EST PST UTC EST GMT EST EST GMT CST EST

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