Tokyo to Honolulu time difference
Tokyo
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Honolulu
—
Difference right now: —
Tokyo (Japan) and Honolulu (United States) are 19 hours apart, with Honolulu behind Tokyo right now. Tokyo is UTC+9; Honolulu is UTC−10. Japan's business and engineering reference time. It does not observe daylight saving. Hawaii. No daylight saving, fixed at UTC−10. Weekday 09:00–18:00 overlaps for 4 hours. The figures are computed for 2026年10月19日 Japan time from the timezone database. The clocks at the top update every second in your browser.
Current difference
When it is noon in Tokyo, it is previous day 17:00 in Honolulu. The gap is 19 hours (Honolulu minus Tokyo).
Does daylight saving change the gap?
Tokyo stays at UTC+9 for at least the next year, and Honolulu stays at UTC−10. Neither city changes clocks, so the gap stays 19 hours all year.
24-hour comparison
One civil day in Tokyo, and the matching clock in Honolulu. Green means both cities are inside 09:00–18:00. Amber is the 07:00–22:00 compromise.
| Tokyo | Honolulu |
|---|---|
| 00:00 | previous day 05:00 |
| 01:00 | previous day 06:00 |
| 02:00 | previous day 07:00 |
| 03:00 | previous day 08:00 |
| 04:00 | previous day 09:00 |
| 05:00 | previous day 10:00 |
| 06:00 | previous day 11:00 |
| 07:00 | previous day 12:00 |
| 08:00 | previous day 13:00 |
| 09:00 | previous day 14:00 |
| 10:00 | previous day 15:00 |
| 11:00 | previous day 16:00 |
| 12:00 | previous day 17:00 |
| 13:00 | previous day 18:00 |
| 14:00 | previous day 19:00 |
| 15:00 | previous day 20:00 |
| 16:00 | previous day 21:00 |
| 17:00 | previous day 22:00 |
| 18:00 | previous day 23:00 |
| 19:00 | 00:00 |
| 20:00 | 01:00 |
| 21:00 | 02:00 |
| 22:00 | 03:00 |
| 23:00 | 04:00 |
- Both cities 09:00–18:00
- 07:00–22:00 compromise
Best time for a meeting
Weekday 09:00–18:00 overlaps at Tokyo 09:00–13:00 (Honolulu previous day 14:00–18:00). Both sides stay inside a normal working day. Those hours are the green rows.
FAQ
- What is the time difference between Tokyo and Honolulu right now?
- They are 19 hours apart, with Honolulu behind Tokyo. Tokyo is UTC+9 and Honolulu is UTC−10 as of 2026年10月19日 Japan time.
- When it is noon in Tokyo, what time is it in Honolulu?
- Noon in Tokyo is previous day 17:00 in Honolulu.
- Does daylight saving change the difference?
- Tokyo stays at UTC+9 for at least the next year, and Honolulu stays at UTC−10. Neither city changes clocks, so the gap stays 19 hours all year.
- What is the best time for a meeting between Tokyo and Honolulu?
- Weekday 09:00–18:00 overlaps at Tokyo 09:00–13:00 (Honolulu previous day 14:00–18:00). Both sides stay inside a normal working day. Those hours are the green rows.
- What is the difference from Honolulu back to Tokyo?
- Tokyo is 19 hours ahead of Honolulu. On Autoki, each person marks availability in their own city.