Observatory log
Tokyo and As Sib, compared
- 01Difference now
As Sib is 5 hours behind Tokyo.
Tokyo: JST (UTC+9) · As Sib: UTC+4 (UTC+4)
- 02Through 2026–2027
The difference stays the same all year.
- 1 January 2026 – 31 December 2027−5 h
Difference of As Sib from Tokyo. It changes on the days either place changes its clocks (dates local to that place).
- 03Shared working hours
- Mon–Thu: 14:00–17:00 in Tokyo = 09:00–12:00 in As Sib · 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
14:00–17:00 in Tokyo = 09:00–12:00 in As Sib
Inside both working days (Mon–Thu).
- 05Weekend
Tokyo: Saturday and Sunday
As Sib: Friday and Saturday
24 hours
A day in Tokyo, in As Sib
| Tokyo | As Sib | Working hours, evening, night or weekend in each place |
|---|---|---|
| 00:00 | 19:00Yesterday | |
| 01:00 | 20:00Yesterday | |
| 02:00 | 21:00Yesterday | |
| 03:00 | 22:00Yesterday | |
| 04:00 | 23:00Yesterday | |
| 05:00 | 00:00 | |
| 06:00 | 01:00 | |
| 07:00 | 02:00 | |
| 08:00 | 03:00 | |
| 09:00 | 04:00 | |
| 10:00 | 05:00 | |
| 11:00 | 06:00 | |
| 12:00 | 07:00 | |
| 13:00 | 08:00 | |
| 14:00 | 09:00 | |
| 15:00 | 10:00 | |
| 16:00 | 11:00 | |
| 17:00 | 12:00 | |
| 18:00 | 13:00 | |
| 19:00 | 14:00 | |
| 20:00 | 15:00 | |
| 21:00 | 16:00 | |
| 22:00 | 17:00 | |
| 23:00 | 18:00 |
Working hoursEarly or eveningNightWeekend
Plan a meeting: Tokyo and As Sib
More time differences with Tokyo
Questions
Asked about Tokyo and As Sib
What is the time difference between Tokyo and As Sib?
As Sib is 5 hours behind Tokyo. The difference stays the same all year.
What is the best time for a call between Tokyo and As Sib?
Inside both working days: Mon–Thu: 14:00–17:00 in Tokyo = 09:00–12:00 in As Sib · 3 h.
When does the time difference between Tokyo and As Sib change?
It does not change in the next 12 months: Tokyo and As Sib either keep the same time all year or change their clocks on the same dates.