Hanoi
Exact time synced with atomic clocks (IANA + NTP)
Thursday, May 21, 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)
Wednesday, May 20, 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
Scheduling a family call between Hanoi and São Paulo takes a little planning. Hanoi is 10 hours ahead of São Paulo, which means there's no window that feels comfortable for everyone at the same time. The most manageable option is early evening in Hanoi — around 7 pm — which puts São Paulo at 9 am. Someone will need to stretch a little, but at least no one's setting a middle-of-the-night alarm. Weekends tend to give the most flexibility if you can agree on a time in advance.
Hanoi
National Day
Sep 2in 105dNew Year's Day
Jan 1in 226dReunification Day
Apr 30in 345d
Daylight Cycle
🌅 Dawn4:53:45 AM
☀️ Sunrise5:17:50 AM
🌞 Solar Noon11:54:39 AM
🌇 Golden Hour6:00:11 PM
🌆 Sunset6:31:28 PM
🌃 Dusk6:55:33 PM
Day length13:13:38
Data via sunrisesunset.io
Current Weather
Condition🌦️ Drizzle
Temperature28°C
Feels like35°C
Humidity91%
Wind4 mph SE
Data via Open-Meteo · Updates every 30 min
Moon Phase
Phase🌒 Waxing Crescent
Illumination24%
CycleWaxing
Moon age4.8 days
Moonrise09:26
Moonset23:13
São Paulo
Corpus Christi
Jun 4in 15dConstitutionalist Revolution of 1932
Jul 9in 50dIndependence Day
Sep 7in 110d
Daylight Cycle
🌅 Dawn6:08:36 AM
☀️ Sunrise6:32:35 AM
🌞 Solar Noon12:04:29 PM
🌇 Golden Hour5:04:04 PM
🌆 Sunset5:36:23 PM
🌃 Dusk6:00:22 PM
Day length11:03:48
Data via sunrisesunset.io
Current Weather
Condition🌙 Mainly clear
Temperature15°C
Feels like16°C
Humidity97%
Wind3 mph SE
Data via Open-Meteo · Updates every 30 min
Moon Phase
Phase🌒 Waxing Crescent
Illumination24%
CycleWaxing
Moon age4.8 days
Moonrise11:22
Moonset21:27