Observatory log
Tokyo and Hay River, compared
- 01Difference now
Hay River is 15 hours behind Tokyo.
Tokyo: JST (UTC+9) · Hay River: MDT (UTC−6)
- 02Through 2026–2027
- 1 January 2026 – 8 March 2026−16 h
- 8 March 2026 – 31 December 2027−15 h
Difference of Hay River from Tokyo. It changes on the days either place changes its clocks (dates local to that place).
- 03Shared working hours
Their working days never overlap.
Counted as 09:00–17:00 local time on each place’s own working days, for the next seven days.
- 04Best time to meet
09:00–13:00 in Tokyo = 18:00–22:00 in Hay River
No shared office hours: this is early or late for one side (Tue–Fri).
Also possible: Tue–Fri: 06:00–08:00 in Tokyo = 15:00–17:00 in Hay River (yesterday) · 2 h.
- 05Weekend
Tokyo: Saturday and Sunday
Hay River: Saturday and Sunday
24 hours
A day in Tokyo, in Hay River
| Tokyo | Hay River | Working hours, evening, night or weekend in each place |
|---|---|---|
| 00:00 | 09:00Yesterday | |
| 01:00 | 10:00Yesterday | |
| 02:00 | 11:00Yesterday | |
| 03:00 | 12:00Yesterday | |
| 04:00 | 13:00Yesterday | |
| 05:00 | 14:00Yesterday | |
| 06:00 | 15:00Yesterday | |
| 07:00 | 16:00Yesterday | |
| 08:00 | 17:00Yesterday | |
| 09:00 | 18:00Yesterday | |
| 10:00 | 19:00Yesterday | |
| 11:00 | 20:00Yesterday | |
| 12:00 | 21:00Yesterday | |
| 13:00 | 22:00Yesterday | |
| 14:00 | 23:00Yesterday | |
| 15:00 | 00:00 | |
| 16:00 | 01:00 | |
| 17:00 | 02:00 | |
| 18:00 | 03:00 | |
| 19:00 | 04:00 | |
| 20:00 | 05:00 | |
| 21:00 | 06:00 | |
| 22:00 | 07:00 | |
| 23:00 | 08:00 |
Working hoursEarly or eveningNightWeekend
Plan a meeting: Tokyo and Hay River
More time differences with Tokyo
Questions
Asked about Tokyo and Hay River
What is the time difference between Tokyo and Hay River?
Hay River is 15 hours behind Tokyo. The difference stays the same all year.
What is the best time for a call between Tokyo and Hay River?
No shared office hours. The least awkward windows, early or late for one side: Tue–Fri: 09:00–13:00 in Tokyo = 18:00–22:00 in Hay River (yesterday) · 4 h; Tue–Fri: 06:00–08:00 in Tokyo = 15:00–17:00 in Hay River (yesterday) · 2 h.
When does the time difference between Tokyo and Hay River change?
It does not change in the next 12 months: Tokyo and Hay River either keep the same time all year or change their clocks on the same dates.