São Paulo is 7 hours 30 minutes behind Iran. When it's noon in São Paulo, it's 18:00 in Iran.
São Paulo runs on America/Sao_Paulo; Iran runs on Asia/Tehran. Together they are 6.5 hours 30 minutes apart.
Business hours comparison
Both São Paulo and Iran are simultaneously in business hours for 1.5 hours per day (assuming standard 9:00–17:00 working hours).
00:0006:0012:0018:0024:00
São Paulo
Iran
Overlap (1.5h)
Best call times between these locations
There is a 1.5-hour daily window where both locations are in business hours.
09:00 São Paulo / 15:00 Tehran✓ Both working
10:00 São Paulo / 16:00 Tehran✓ Both working
Working hours defined as 09:00–17:00 local time for each location.
Public holidays this year
São Paulo6 holidays
Sep 7Independence Day
Oct 12Our Lady of Aparecida
Nov 2All Souls' Day
Nov 15Republic Proclamation Day
Nov 20Black Awareness Day
Iran
No upcoming public holidays this year.
São Paulo and Iran — practical scheduling
São Paulo (Brazil) and Iran (Iran) are 6.5 hours apart. With a 1.5-hour daily overlap in standard business hours, both teams can connect in real time without either side stretching beyond their normal workday.
💡 Practical scheduling guidelines
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If you are in São Paulo, aim for 09:00–10:00, which corresponds to 15:00–16:00 in Iran — both teams are within working hours.
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If you are in São Paulo, aim for 10:00–11:00, which corresponds to 16:00–17:00 in Iran — both teams are within working hours.
Avoid scheduling mistakes — especially around daylight saving changes. Use the ClockinSync Chrome Extension to instantly verify and compare both time zones directly in your browser, without manual calculations.
Need a specific time? Use the slider or type directly into the input bar — it understands "3pm", "15:30", and location-specific formats like "9am São Paulo".
