Observatory log
Tokyo and São Luís, compared
- 01Difference now
São Luís is 12 hours behind Tokyo.
Tokyo: JST (UTC+9) · São Luís: UTC−3 (UTC−3)
- 02Through 2026–2027
The difference stays the same all year.
- 1 January 2026 – 31 December 2027−12 h
Difference of São Luís 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
21:00–22:00 in Tokyo = 09:00–10:00 in São Luís
No shared office hours: this is early or late for one side (Mon–Fri).
Also possible: Tue–Fri: 09:00–10:00 in Tokyo = 21:00–22:00 in São Luís (yesterday) · 1 h.
- 05Weekend
Tokyo: Saturday and Sunday
São Luís: Saturday and Sunday
24 hours
A day in Tokyo, in São Luís
| Tokyo | São Luís | Working hours, evening, night or weekend in each place |
|---|---|---|
| 00:00 | 12:00Yesterday | |
| 01:00 | 13:00Yesterday | |
| 02:00 | 14:00Yesterday | |
| 03:00 | 15:00Yesterday | |
| 04:00 | 16:00Yesterday | |
| 05:00 | 17:00Yesterday | |
| 06:00 | 18:00Yesterday | |
| 07:00 | 19:00Yesterday | |
| 08:00 | 20:00Yesterday | |
| 09:00 | 21:00Yesterday | |
| 10:00 | 22:00Yesterday | |
| 11:00 | 23:00Yesterday | |
| 12:00 | 00:00 | |
| 13:00 | 01:00 | |
| 14:00 | 02:00 | |
| 15:00 | 03:00 | |
| 16:00 | 04:00 | |
| 17:00 | 05:00 | |
| 18:00 | 06:00 | |
| 19:00 | 07:00 | |
| 20:00 | 08:00 | |
| 21:00 | 09:00 | |
| 22:00 | 10:00 | |
| 23:00 | 11:00 |
Working hoursEarly or eveningNightWeekend
Plan a meeting: Tokyo and São Luís
More time differences with Tokyo
Questions
Asked about Tokyo and São Luís
What is the time difference between Tokyo and São Luís?
São Luís is 12 hours behind Tokyo. The difference stays the same all year.
What is the best time for a call between Tokyo and São Luís?
No shared office hours. The least awkward windows, early or late for one side: Mon–Fri: 21:00–22:00 in Tokyo = 09:00–10:00 in São Luís · 1 h; Tue–Fri: 09:00–10:00 in Tokyo = 21:00–22:00 in São Luís (yesterday) · 1 h.
When does the time difference between Tokyo and São Luís change?
It does not change in the next 12 months: Tokyo and São Luís either keep the same time all year or change their clocks on the same dates.