Time Difference: New York vs Tokyo
New York (GMT-4) · Tokyo (GMT+9)
New York
GMT-4
--:--:--
Tokyo
GMT+9
--:--:--
Tokyo and New York are in the same UTC offset
Time Difference
0h
New York Offset
GMT-4
America/New_York
Tokyo Offset
GMT+9
Asia/Tokyo
Summary
New York and Tokyo share the same UTC offset
Business Hours Overlap (9 AM – 6 PM)
9 hours overlap during standard business hours in both cities.
| New York | Tokyo | Overlap |
|---|---|---|
| 9 AM | 9 AM | Business hours |
| 10 AM | 10 AM | Business hours |
| 11 AM | 11 AM | Business hours |
| 12 PM | 12 PM | Business hours |
| 1 PM | 1 PM | Business hours |
| 2 PM | 2 PM | Business hours |
| 3 PM | 3 PM | Business hours |
| 4 PM | 4 PM | Business hours |
| 5 PM | 5 PM | Business hours |
| 6 PM | 6 PM | Outside |
Did You Know? — New York & Tokyo
Time Zone Facts: New York
- •New York City operates on EST (UTC-5) in winter and EDT (UTC-4) during Daylight Saving Time, which the US observes from the second Sunday in March to the first Sunday in November.
- •The New York Stock Exchange on Wall Street opens at 9:30 AM ET and closes at 4:00 PM ET — its trading hours set the pace for global equity markets each business day.
- •At 40.7°N latitude, New York sees dramatic daylight swings: just under 9 hours of daylight in late December and over 15 hours in late June.
Time Zone Facts: Tokyo
- •Japan Standard Time (JST, UTC+9) does not observe Daylight Saving Time — Japan abandoned DST in 1952 after a post-war experiment, so JST stays fixed year-round.
- •The Tokyo Stock Exchange (TSE) operates 9:00 AM–11:30 AM and 12:30 PM–3:30 PM JST, closing for a lunch break — a notable difference from Western continuous-trading exchanges.
- •Tokyo sits at 35.7°N, giving it about 9.9 hours of daylight in December and 14.6 hours in June — a moderate seasonal swing compared to European cities at similar latitudes.
Frequently Asked Questions
New York and Tokyo are in the same time zone offset, so there is no time difference between them.
There are 9 overlapping business hours (9 AM–6 PM) between New York and Tokyo. Scheduling during those hours ensures both parties are in their working day.
New York and Tokyo share the same UTC offset (GMT-4), so their workdays are completely synchronized — no conversion needed, identical real-time availability, and deadline alignment is automatic.
New York observes GMT-4 (America/New_York). A standard 9:00 AM–6:00 PM workday in New York maps to specific UTC hours — use UTC-anchored deadlines when coordinating with New York-based teammates to avoid confusion from local clock changes.
Tokyo observes GMT+9 (Asia/Tokyo). A standard 9:00 AM–6:00 PM workday in Tokyo maps to specific UTC hours — use UTC-anchored deadlines when coordinating with Tokyo-based teammates to avoid confusion from local clock changes.
If {cityA} and {cityB} follow different DST schedules — common in North America–Europe, Southern Hemisphere, or no-DST pairings — the time difference shifts by 1 hour during each transition. The 1–3 weeks between the two cities' clock-change dates create a 'gap window' that frequently catches teams off guard. The difference displayed here is always live and accounts for current DST status.
The best time to call Tokyo from New York is during the 9-hour business-hours overlap window, when both cities are within their standard working day (9 AM–6 PM).
When it is midnight (00:00) in New York, it is 12 AM in Tokyo.
No — New York and Tokyo share the same UTC offset, so they are always on the same calendar date.
New York observes America/New_York (GMT-4). For async-first teams, the most reliable approach is anchoring shared deadlines in UTC rather than any local time, and defining each member's 'availability window' — typically 9:00 AM–6:00 PM America/New_York for New York. This eliminates confusion when DST transitions shift local clocks seasonally.
Tokyo observes Asia/Tokyo (GMT+9). For async-first teams, the most reliable approach is anchoring shared deadlines in UTC rather than any local time, and defining each member's 'availability window' — typically 9:00 AM–6:00 PM Asia/Tokyo for Tokyo. This eliminates confusion when DST transitions shift local clocks seasonally.
Yes — with 9 hours of overlapping business hours, New York and Tokyo teams can hold real-time standups and synchronous collaboration daily during that window.
Compare other cities with New York
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Compare other cities with Tokyo
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