Observatory log
São Paulo and Tehran, compared
- 01Difference now
Tehran is 6 hours 30 minutes ahead of São Paulo.
São Paulo: UTC−3 (UTC−3) · Tehran: UTC+3:30 (UTC+3:30)
- 02Through 2026–2027
The difference stays the same all year.
- 1 January 2026 – 31 December 2027+6 h 30 min
Difference of Tehran from São Paulo. It changes on the days either place changes its clocks (dates local to that place).
- 03Shared working hours
- Mon–Thu: 09:00–10:30 in São Paulo = 15:30–17:00 in Tehran · 1 h 30 min
Counted as 09:00–17:00 local time on each place’s own working days, for the next seven days.
- 04Best time to meet
09:00–10:30 in São Paulo = 15:30–17:00 in Tehran
Inside both working days (Mon–Thu).
- 05Weekend
São Paulo: Saturday and Sunday
Tehran: Friday
24 hours
A day in São Paulo, in Tehran
| São Paulo | Tehran | Working hours, evening, night or weekend in each place |
|---|---|---|
| 00:00 | 06:30 | |
| 01:00 | 07:30 | |
| 02:00 | 08:30 | |
| 03:00 | 09:30 | |
| 04:00 | 10:30 | |
| 05:00 | 11:30 | |
| 06:00 | 12:30 | |
| 07:00 | 13:30 | |
| 08:00 | 14:30 | |
| 09:00 | 15:30 | |
| 10:00 | 16:30 | |
| 11:00 | 17:30 | |
| 12:00 | 18:30 | |
| 13:00 | 19:30 | |
| 14:00 | 20:30 | |
| 15:00 | 21:30 | |
| 16:00 | 22:30 | |
| 17:00 | 23:30 | |
| 18:00 | 00:30Tomorrow | |
| 19:00 | 01:30Tomorrow | |
| 20:00 | 02:30Tomorrow | |
| 21:00 | 03:30Tomorrow | |
| 22:00 | 04:30Tomorrow | |
| 23:00 | 05:30Tomorrow |
Working hoursEarly or eveningNightWeekend
Questions
Asked about São Paulo and Tehran
What is the time difference between São Paulo and Tehran?
Tehran is 6 hours 30 minutes ahead of São Paulo. The difference stays the same all year.
What is the best time for a call between São Paulo and Tehran?
Inside both working days: Mon–Thu: 09:00–10:30 in São Paulo = 15:30–17:00 in Tehran · 1 h 30 min.
When does the time difference between São Paulo and Tehran change?
It does not change in the next 12 months: São Paulo and Tehran either keep the same time all year or change their clocks on the same dates.