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