Observatory log
Tokyo and Hilo, compared
- 01Difference now
Hilo is 19 hours behind Tokyo.
Tokyo: JST (UTC+9) · Hilo: HST (UTC−10)
- 02Through 2026–2027
The difference stays the same all year.
- 1 January 2026 – 31 December 2027−19 h
Difference of Hilo from Tokyo. It changes on the days either place changes its clocks (dates local to that place).
- 03Shared working hours
- Tue–Fri: 09:00–12:00 in Tokyo = 14:00–17:00 in Hilo (yesterday) · 3 h
Counted as 09:00–17:00 local time on each place’s own working days, for the next seven days.
- 04Best time to meet
09:00–12:00 in Tokyo = 14:00–17:00 in Hilo
Inside both working days (Tue–Fri).
- 05Weekend
Tokyo: Saturday and Sunday
Hilo: Saturday and Sunday
24 hours
A day in Tokyo, in Hilo
| Tokyo | Hilo | Working hours, evening, night or weekend in each place |
|---|---|---|
| 00:00 | 05:00Yesterday | |
| 01:00 | 06:00Yesterday | |
| 02:00 | 07:00Yesterday | |
| 03:00 | 08:00Yesterday | |
| 04:00 | 09:00Yesterday | |
| 05:00 | 10:00Yesterday | |
| 06:00 | 11:00Yesterday | |
| 07:00 | 12:00Yesterday | |
| 08:00 | 13:00Yesterday | |
| 09:00 | 14:00Yesterday | |
| 10:00 | 15:00Yesterday | |
| 11:00 | 16:00Yesterday | |
| 12:00 | 17:00Yesterday | |
| 13:00 | 18:00Yesterday | |
| 14:00 | 19:00Yesterday | |
| 15:00 | 20:00Yesterday | |
| 16:00 | 21:00Yesterday | |
| 17:00 | 22:00Yesterday | |
| 18:00 | 23:00Yesterday | |
| 19:00 | 00:00 | |
| 20:00 | 01:00 | |
| 21:00 | 02:00 | |
| 22:00 | 03:00 | |
| 23:00 | 04:00 |
Working hoursEarly or eveningNightWeekend
Plan a meeting: Tokyo and Hilo
More time differences with Tokyo
Questions
Asked about Tokyo and Hilo
What is the time difference between Tokyo and Hilo?
Hilo is 19 hours behind Tokyo. The difference stays the same all year.
What is the best time for a call between Tokyo and Hilo?
Inside both working days: Tue–Fri: 09:00–12:00 in Tokyo = 14:00–17:00 in Hilo (yesterday) · 3 h.
When does the time difference between Tokyo and Hilo change?
It does not change in the next 12 months: Tokyo and Hilo either keep the same time all year or change their clocks on the same dates.