Observatory log
Tokyo and Rio Largo, compared
- 01Difference now
Rio Largo is 12 hours behind Tokyo.
Tokyo: JST (UTC+9) · Rio Largo: UTC−3 (UTC−3)
- 02Through 2026–2027
The difference stays the same all year.
- 1 January 2026 – 31 December 2027−12 h
Difference of Rio Largo 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 Rio Largo
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 Rio Largo (yesterday) · 1 h.
- 05Weekend
Tokyo: Saturday and Sunday
Rio Largo: Saturday and Sunday
24 hours
A day in Tokyo, in Rio Largo
| Tokyo | Rio Largo | 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 Rio Largo
More time differences with Tokyo
Questions
Asked about Tokyo and Rio Largo
What is the time difference between Tokyo and Rio Largo?
Rio Largo is 12 hours behind Tokyo. The difference stays the same all year.
What is the best time for a call between Tokyo and Rio Largo?
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 Rio Largo · 1 h; Tue–Fri: 09:00–10:00 in Tokyo = 21:00–22:00 in Rio Largo (yesterday) · 1 h.
When does the time difference between Tokyo and Rio Largo change?
It does not change in the next 12 months: Tokyo and Rio Largo either keep the same time all year or change their clocks on the same dates.