Hanoi
Exact time synced with atomic clocks (IANA + NTP)
Sunday, July 5, 2026
Vietnam · Asia/Ho_Chi_Minh · GMT+7
Hanoi and São Paulo Time Difference
Hanoi is 10h ahead of São Paulo
São Paulo
Exact time synced with atomic clocks (IANA + NTP)
Sunday, July 5, 2026
Brazil · America/Sao_Paulo · GMT-3
Best time for work calls
If you are scheduling a call between Hanoi 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
Hanoi and São Paulo have a comfortable window for a family call — no awkward alarms required. Hanoi is 10 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 Hanoi — that lands at 8 am to 12 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.
Hanoi
National Day
Sep 2in 60dNew Year's Day
Jan 1in 181dReunification Day
Apr 30in 300d
Daylight Cycle
🌅 Dawn4:56:25 AM
☀️ Sunrise5:21:05 AM
🌞 Solar Noon12:02:15 PM
🌇 Golden Hour6:11:30 PM
🌆 Sunset6:43:26 PM
🌃 Dusk7:08:05 PM
Day length13:22:21
Data via sunrisesunset.io
Current Weather
Condition—
Temperature—
Feels like—
Humidity—
Wind—
Data via Open-Meteo · Updates every 30 min
Moon Phase
Phase🌖 Waning Gibbous
Illumination75%
CycleWaning
Moon age19.7 days
Moonrise22:19
Moonset09:45
São Paulo
Constitutionalist Revolution of 1932
Jul 9in 4dIndependence Day
Sep 7in 64dOur Lady of Aparecida
Oct 12in 99d
Daylight Cycle
🌅 Dawn6:25:50 AM
☀️ Sunrise6:50:24 AM
🌞 Solar Noon12:12:12 PM
🌇 Golden Hour5:00:44 PM
🌆 Sunset5:34:00 PM
🌃 Dusk5:58:34 PM
Day length10:43:35
Data via sunrisesunset.io
Current Weather
Condition—
Temperature—
Feels like—
Humidity—
Wind—
Data via Open-Meteo · Updates every 30 min
Moon Phase
Phase🌖 Waning Gibbous
Illumination75%
CycleWaning
Moon age19.7 days
Moonrise21:47
Moonset10:29