
Exact time synced with atomic clocks (IANA + NTP)
Monday, April 6, 2026
China · Asia/Shanghai · GMT+8
Chongqing is 1h ahead of Hanoi

Exact time synced with atomic clocks (IANA + NTP)
Monday, April 6, 2026
China · Asia/Shanghai · GMT+8

Exact time synced with atomic clocks (IANA + NTP)
Monday, April 6, 2026
Vietnam · Asia/Ho_Chi_Minh · GMT+7
If you are scheduling a call between Chongqing and Hanoi, the overlap window is limited to typical business hours. When it is 10 am in Chongqing it is 9 am in Hanoi — a workable window for scheduling. The latest reasonable overlap is around 5 pm in Chongqing (4 pm in Hanoi). Outside this window there is effectively no good overlap for regular office hours.
Chongqing and Hanoi have a comfortable window for a family call — no awkward alarms required. Chongqing is 1 hour ahead of Hanoi, which gives you 4 hours of genuine overlap when both sides are free. Aim for between 6 pm and 10 pm in Chongqing — that lands at 5 pm to 9 pm in Hanoi, 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.
Labour Day
劳动节
Dragon Boat Festival
端午节
Mid-Autumn Festival
中秋节
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Reunification Day
Ngày Giải phóng miền Nam, thống nhất đất nước
Labour Day
Ngày Quốc tế lao động
National Day
Quốc khánh
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Data via sunrisesunset.io
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