Tehran
Exact time synced with atomic clocks (IANA + NTP)
Monday, June 29, 2026
Iran · Asia/Tehran · GMT+3:30
Tehran and São Paulo Time Difference
Tehran is 6.5h ahead of São Paulo
São Paulo
Exact time synced with atomic clocks (IANA + NTP)
Monday, June 29, 2026
Brazil · America/Sao_Paulo · GMT-3
Best time for work calls
If you are scheduling a call between Tehran and São Paulo, there is very limited or no overlap in normal business hours. Consider early-morning or late-evening calls for one side, or use async communication.
Best time for family calls
Tehran and São Paulo have a comfortable window for a family call — no awkward alarms required. Tehran is 6.5 hours ahead of São Paulo, which gives you 4 hours of genuine overlap when both sides are free. Aim for between 6 pm and 10 pm in Tehran — that lands at 11:30 am to 3:30 pm in São Paulo, after the school run and before anyone's ready for bed. For a Sunday catch-up or a midweek check-in, this is the sweet spot.
Tehran
No public holidays on record for this country
Daylight Cycle
🌅 Dawn4:22:23 AM
☀️ Sunrise4:52:24 AM
🌞 Solar Noon12:08:59 PM
🌇 Golden Hour6:47:47 PM
🌆 Sunset7:25:35 PM
🌃 Dusk7:55:36 PM
Day length14:33:10
Data via sunrisesunset.io
Current Weather
Condition—
Temperature—
Feels like—
Humidity—
Wind—
Data via Open-Meteo · Updates every 30 min
Moon Phase
Phase🌕 Full Moon
Illumination99%
CycleWaxing
Moon age14 days
Moonrise19:19
Moonset03:51
São Paulo
Constitutionalist Revolution of 1932
Jul 9in 10dIndependence Day
Sep 7in 70dOur Lady of Aparecida
Oct 12in 105d
Daylight Cycle
🌅 Dawn6:25:35 AM
☀️ Sunrise6:50:14 AM
🌞 Solar Noon12:11:08 PM
🌇 Golden Hour4:58:37 PM
🌆 Sunset5:32:01 PM
🌃 Dusk5:56:41 PM
Day length10:41:46
Data via sunrisesunset.io
Current Weather
Condition—
Temperature—
Feels like—
Humidity—
Wind—
Data via Open-Meteo · Updates every 30 min
Moon Phase
Phase🌕 Full Moon
Illumination99%
CycleWaxing
Moon age14 days
Moonrise17:09
Moonset06:36