
Exact time synced with atomic clocks (IANA + NTP)
Sunday, April 5, 2026
China · Asia/Shanghai · GMT+8
Shanghai is 1h behind Seoul

Exact time synced with atomic clocks (IANA + NTP)
Sunday, April 5, 2026
China · Asia/Shanghai · GMT+8

Exact time synced with atomic clocks (IANA + NTP)
Monday, April 6, 2026
South Korea · Asia/Seoul · GMT+9
If you are scheduling a call between Shanghai and Seoul, the overlap window is limited to typical business hours. When it is 9 am in Shanghai it is 10 am in Seoul — a workable window for scheduling. The latest reasonable overlap is around 4 pm in Shanghai (5 pm in Seoul). Outside this window there is effectively no good overlap for regular office hours.
Scheduling a family call between Shanghai and Seoul takes a little planning. Shanghai is 1 hour behind Seoul, which means there's no window that feels comfortable for everyone at the same time. The most manageable option is early evening in Shanghai — around 7 pm — which puts Seoul at 8 pm. 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.
Labour Day
劳动节
Dragon Boat Festival
端午节
Mid-Autumn Festival
中秋节
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Data via sunrisesunset.io
Data via Open-Meteo · Updates every 30 min
Children's Day
어린이날
Buddha's Birthday
부처님 오신 날
Memorial Day
현충일
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Data via sunrisesunset.io
Data via Open-Meteo · Updates every 30 min