JST to EST
Tokyo is 14 hours ahead of New York in winter and 13 hours ahead from mid-March to early November, when the US is on daylight time and Japan is not. 9:00 AM Monday in Tokyo is 7:00 PM Sunday in New York in January and 8:00 PM Sunday in July.
Convert the other way: EST → JST
- Difference right now
- EST 13 hours behind JST
- Shared office hours
- No weekday working hours overlap; one side has to stretch before 9:00 or after 17:00.
- Daylight saving
- Only EST shifts its clocks
JST to EST, hour by hour
Every hour of the day, using today's offsets (daylight saving is applied automatically).
- 12:00 AM11:00 AM−1
- 1:00 AM12:00 PM−1
- 2:00 AM1:00 PM−1
- 3:00 AM2:00 PM−1
- 4:00 AM3:00 PM−1
- 5:00 AM4:00 PM−1
- 6:00 AM5:00 PM−1
- 7:00 AM6:00 PM−1
- 8:00 AM7:00 PM−1
- 9:00 AM8:00 PM−1
- 10:00 AM9:00 PM−1
- 11:00 AM10:00 PM−1
- 12:00 PM11:00 PM−1
- 1:00 PM12:00 AM
- 2:00 PM1:00 AM
- 3:00 PM2:00 AM
- 4:00 PM3:00 AM
- 5:00 PM4:00 AM
- 6:00 PM5:00 AM
- 7:00 PM6:00 AM
- 8:00 PM7:00 AM
- 9:00 PM8:00 AM
- 10:00 PM9:00 AM
- 11:00 PM10:00 AM
Why the gap is 14 hours in winter and 13 in summer
Japan keeps UTC+9 all year. The country used daylight saving only from 1948 to 1951, during the postwar occupation, and has not changed its clocks since. New York alternates between EST (UTC−5) and EDT (UTC−4), switching on the second Sunday of March and the first Sunday of November. Only one side moves, so the difference changes twice a year: 14 hours through the northern winter, 13 hours through the summer.
Because Tokyo is so far ahead, its calendar runs a day early for most of the New York day. Whenever it is before 2:00 PM in Tokyo in winter (1:00 PM in summer), New York is still on the previous date. A deadline of "Friday 10:00 JST" therefore falls on Thursday evening in New York, which is the most common source of missed handoffs between the two cities.
Tokyo and Wall Street trading hours side by side
The Tokyo Stock Exchange trades from 9:00 to 11:30 and from 12:30 to 15:30 JST. By New York clocks that is 7:00 PM to 1:30 AM in winter and 8:00 PM to 2:30 AM in summer, the evening before. The New York Stock Exchange's 9:30 AM–4:00 PM session runs from 11:30 PM to 6:00 AM Tokyo time in winter and from 10:30 PM to 5:00 AM in summer, so the two markets never overlap.
Traders in Japan who follow US economic releases at 8:30 AM Eastern see them at 10:30 PM Tokyo time in winter and 9:30 PM in summer. Funds that report on Japanese stocks to New York clients send their closing notes around 2:00 AM Eastern, ready before the US open.
A call window that works for both cities
The only comfortable overlap is a New York evening and a Tokyo morning. A call at 8:00 PM in New York reaches Tokyo at 10:00 AM the next day in winter and 9:00 AM in summer, which suits teams who report to the US but work in Japan. Pick the time on the converter above with the real date, and see the New York to Tokyo page when the meeting is organized from the US side.
Clock changes this year
- —JST: no clock changes this year
- Mar 8, 2026EST: clocks go forward, UTC−5 → UTC−4
- Nov 1, 2026EST: clocks go back, UTC−4 → UTC−5
Cities on these zones
Other conversions with these zones
Frequently asked questions
- What time is it in New York when it is noon in Tokyo?
- Noon in Tokyo is 10:00 PM the previous evening in New York during winter and 11:00 PM during US daylight time.
- Does Japan observe daylight saving time?
- No. Japan used summer time only between 1948 and 1951 and has stayed on UTC+9 ever since. Proposals to bring it back, including one before the 2020 Tokyo Olympics, were dropped.
- Is Tokyo always a day ahead of New York?
- Not always, but for most of the day. The two cities share the same date only between 2:00 PM and midnight Tokyo time in winter, or 1:00 PM and midnight in summer.
- How long is the flight from Tokyo to New York, and what time do you land?
- A nonstop takes roughly 12 to 13 hours. Because you fly east across the date line, a flight leaving Haneda at 11:00 AM lands in New York around 10:00 AM the same calendar day in winter.