EST to JST: Convert Eastern Time to Japan Standard Time

Japan Standard Time is 13 hours ahead of Eastern Time right now (until Oct 31, 2026); the gap changes to 14 hours when clocks change for daylight saving time. Convert any time below, or use the full EST to JST conversion table.

Eastern Time (EST/EDT)
–
Japan Standard Time (JST)
–
–

Quick answer

Japan Standard Time is 13 hours ahead of Eastern Time right now (until Oct 31, 2026); the gap changes to 14 hours when clocks change for daylight saving time. So 12:00 PM EDT = 1:00 AM (next day) JST at the moment. (Eastern Time is on EDT for daylight saving time right now.)

EST to JST conversion table

ESTJST when EST is EDTJST when EST is EST
12:00 AM1:00 PM2:00 PM
1:00 AM2:00 PM3:00 PM
2:00 AM3:00 PM4:00 PM
3:00 AM4:00 PM5:00 PM
4:00 AM5:00 PM6:00 PM
5:00 AM6:00 PM7:00 PM
6:00 AM7:00 PM8:00 PM
7:00 AM8:00 PM9:00 PM
8:00 AM9:00 PM10:00 PM
9:00 AM10:00 PM11:00 PM
10:00 AM11:00 PM12:00 AM +1 day
11:00 AM12:00 AM +1 day1:00 AM +1 day
12:00 PM1:00 AM +1 day2:00 AM +1 day
1:00 PM2:00 AM +1 day3:00 AM +1 day
2:00 PM3:00 AM +1 day4:00 AM +1 day
3:00 PM4:00 AM +1 day5:00 AM +1 day
4:00 PM5:00 AM +1 day6:00 AM +1 day
5:00 PM6:00 AM +1 day7:00 AM +1 day
6:00 PM7:00 AM +1 day8:00 AM +1 day
7:00 PM8:00 AM +1 day9:00 AM +1 day
8:00 PM9:00 AM +1 day10:00 AM +1 day
9:00 PM10:00 AM +1 day11:00 AM +1 day
10:00 PM11:00 AM +1 day12:00 PM +1 day
11:00 PM12:00 PM +1 day1:00 PM +1 day

EST and JST difference through 2027

The gap between the two zones on each date range, including daylight saving time changes:

DatesEastern TimeJapan Standard TimeDifference
Sep 30, 2026 – Oct 31, 2026EDT (UTC−4)JST (UTC+9)JST 13 hours ahead
Nov 1, 2026 – Mar 13, 2027EST (UTC−5)JST (UTC+9)JST 14 hours ahead
Mar 14, 2027 – Nov 6, 2027EDT (UTC−4)JST (UTC+9)JST 13 hours ahead
Nov 7, 2027 – Dec 31, 2027EST (UTC−5)JST (UTC+9)JST 14 hours ahead

Best time to meet or call

  • When JST is 13 hours ahead of EST: Standard 9 AM–5 PM working hours don't overlap. The best compromise is usually early morning in Eastern Time (8:00 AM–9:00 AM), which is 9:00 PM–10:00 PM in Japan Standard Time.
  • When JST is 14 hours ahead of EST: Standard 9 AM–5 PM working hours don't overlap. The best compromise is usually early morning in Eastern Time (8:00 AM–9:00 AM), which is 10:00 PM–11:00 PM in Japan Standard Time.

About Eastern Time (EST)

The Eastern time zone uses EST (UTC−5) in winter and EDT (UTC−4) during daylight saving time, from the second Sunday in March to the first Sunday in November. It's used in New York, Washington DC, Boston, Atlanta, Miami, Detroit and Toronto.

About Japan Standard Time (JST)

Japan uses JST (UTC+9) all year with no daylight saving time. It's used in Tokyo, Osaka, Kyoto and all of Japan.

Frequently asked questions

What time is 12 PM EST in JST?

12:00 PM EDT is 1:00 AM (next day) JST right now (Sep 30, 2026 to Oct 31, 2026). The answer changes when either zone changes its clocks for daylight saving time.

How many hours ahead or behind is JST from EST?

Currently 13 hours ahead of EST. During the year the difference is 13 hours ahead of EST or 14 hours ahead of EST, depending on daylight saving time. See the table on this page for exact dates.

Does EST change for daylight saving time?

Yes. The Eastern time zone uses EST (UTC−5) in winter and EDT (UTC−4) during daylight saving time, from the second Sunday in March to the first Sunday in November.

Does JST change for daylight saving time?

No. Japan uses JST (UTC+9) all year with no daylight saving time.

What is the best time for a call between EST and JST?

Working hours don't overlap. Early morning in Eastern Time or evening in Japan Standard Time usually works best.

Is it EST or EDT right now?

Eastern Time uses EST in winter and EDT from the second Sunday in March to the first Sunday in November. The live clock on this page shows which one applies today.

More time zone conversions

Sources

Reviewed by Gurmej Singh, Founder, Divy Digital Hub · Last reviewed: Wednesday, September 30, 2026. All calculations run in your browser. Editorial policy.