Time difference between Greenwich and Okinawa
Compare the current local time in Greenwich and Okinawa, see when your working hours overlap, and convert any specific hour between the two timezones.
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Convert a specific time
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Working-hours overlap
When Greenwich's 9:00–17:00 business hours overlap with Okinawa's.
Greenwich working hours
Okinawa working hours
Overlap (both working)
🇺🇸 Greenwich
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🇯🇵 Okinawa
Scheduling across Greenwich and Okinawa
Scheduling between Greenwich and Okinawa is hard. Their standard business hours do not overlap on the same day, with the smallest gap running 3 hours between Greenwich closing at 17:00 local and Okinawa opening at 09:00 local. Practical bridging slots: an early Okinawa start at 06:00 (catching Greenwich just at close, 17:00), or a late Greenwich call at 20:00 (catching Okinawa at opening, 09:00).
Quick reference
| 🇺🇸 Greenwich | 🇯🇵 Okinawa | In Okinawa it's… |
|---|---|---|
| 06:00 — Early morning | — | — |
| 09:00 — Start of work | — | — |
| 12:00 — Lunchtime | — | — |
| 15:00 — Mid-afternoon | — | — |
| 17:00 — End of work | — | — |
| 20:00 — Evening | — | — |
Daylight saving status
🇺🇸 Greenwich
Currently in EDT (daylight saving)
Clocks go back to EST
on Sunday 1 November 2026
🇯🇵 Okinawa
Okinawa does not observe daylight saving time. The local offset is fixed year-round.