No overlap — one side will join outside working hours
JST (Tokyo)
EST (New York)
00:00
11:00-1dWorking
01:00
12:00-1dWorking
02:00
13:00-1dWorking
03:00
14:00-1dWorking
04:00
15:00-1dWorking
05:00
16:00-1dWorking
06:00
17:00-1d
07:00
18:00-1d
08:00
19:00-1d
09:00Working
20:00-1doff
10:00Working
21:00-1doff
11:00Working
22:00-1doff
12:00Working
23:00-1doff
13:00Working
00:00off
14:00Working
01:00off
15:00Working
02:00off
16:00Working
03:00off
17:00
04:00
18:00
05:00
19:00
06:00
20:00
07:00
21:00
08:00
22:00
09:00Working
23:00
10:00Working
Working hours: 09:00–17:00 local. Green = both working.Purple = one side only.
Frequently Asked Questions
What is the difference between jst and est?
Japan Standard Time (jst) is UTC+9 and Eastern Standard Time (est) is UTC-4. The difference between them is 13 hours.
Where is jst used?
Japan Standard Time (jst) is used in Japan and surrounding regions. The IANA timezone identifier is Asia/Tokyo.
Where is est used?
Eastern Standard Time (est) is used in USA and surrounding regions. The IANA timezone identifier is America/New_York.
How do I convert jst to est?
Use the interactive converter above. Drag the time slider to any jst time and the est equivalent updates instantly. You can also type a time like "3pm" or "15:00" in the input bar.
JST (Tokyo) to EST (New York) — exact time difference
JST (Tokyo) is 13 hours ahead of EST (New York). At noon in JST (Tokyo), your contact in EST (New York) sees 23:00.
JST (Tokyo) observes Asia/Tokyo and EST (New York) observes America/New_York — a 13 hours gap between them.
Working hours overlap
When JST (Tokyo) is in standard working hours, EST (New York) is not — and vice versa. There is no mutual business window between these two locations.
Meeting time recommendations
No business hours overlap exists between JST (Tokyo) and EST (New York). Showing the most balanced options with minimal inconvenience for both locations.
05:00 Tokyo / 16:00 New York⚡ One side off-hours
⚠️ 4h before working hours in Tokyo
09:00 Tokyo / 20:00 New York⚡ One side off-hours
⚠️ 4h after working hours in New York
04:00 Tokyo / 15:00 New York⚡ One side off-hours
⚠️ 5h before working hours in Tokyo
Assumes a standard 9 AM–5 PM workday in each location's local timezone.
Public holidays for both locations
⚡ Holiday alerts for both locations, double-check schedules before confirming.
JST (Tokyo)7 holidays
Jul 20Marine Day
Aug 11Mountain Day
Sep 21Respect for the Aged Day
Sep 23Autumnal Equinox Day
Oct 12Sports Day
EST (New York)8 holidays
Jun 19Juneteenth National Independence DaySOON
Jul 3Independence Day
Sep 7Labour Day
Oct 12Columbus Day
Oct 12Indigenous Peoples' Day
Scheduling between JST (Tokyo) and EST (New York)
Working across JST (Tokyo) (Japan) and EST (New York) (USA) is a challenge — the 13-hour difference means no shared business hours window under a standard schedule. Flexibility from at least one side is required.
💡 Scheduling tips for these locations
⚡
05:00–06:00 in JST (Tokyo) corresponds to 16:00–17:00 in EST (New York) (4h before working hours in Tokyo).
⚡
09:00–10:00 in JST (Tokyo) corresponds to 20:00–21:00 in EST (New York) (4h after working hours in New York).
⚡
04:00–05:00 in JST (Tokyo) corresponds to 15:00–16:00 in EST (New York) (5h before working hours in Tokyo).
With no shared business hours, these slots distribute the scheduling burden as evenly as possible between both locations.
Recurring meetings are particularly vulnerable to DST shifts. The ClockinSync Chrome Extension alerts you before the offset changes.
Drag the slider at the top to convert any JST (Tokyo) time instantly. You can also type natural language like "3pm", "15:00", or a location name to get an immediate answer.
