Seoul
Exact time synced with atomic clocks (IANA + NTP)
Thursday, May 21, 2026
South Korea Β· Asia/Seoul Β· GMT+9
Seoul and Shanghai Time Difference
Seoul is 1h ahead of Shanghai
Shanghai
Exact time synced with atomic clocks (IANA + NTP)
Thursday, May 21, 2026
China Β· Asia/Shanghai Β· GMT+8
Best time for work calls
If you are scheduling a call between Seoul and Shanghai, the overlap window is limited to typical business hours. When it is 10 am in Seoul it is 9 am in Shanghai β a workable window for scheduling. The latest reasonable overlap is around 5 pm in Seoul (4 pm in Shanghai). Outside this window there is effectively no good overlap for regular office hours.
Best time for family calls
Seoul and Shanghai have a comfortable window for a family call β no awkward alarms required. Seoul is 1 hour ahead of Shanghai, which gives you 4 hours of genuine overlap when both sides are free. Aim for between 6 pm and 10 pm in Seoul β that lands at 5 pm to 9 pm in Shanghai, 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.
Seoul
Buddha's Birthday
May 24in 4dMemorial Day
Jun 6in 17dConstitution Day
Jul 17in 58d
Daylight Cycle
π
Dawn4:48:55 AM
βοΈ Sunrise5:18:43 AM
π Solar Noon12:30:04 PM
π Golden Hour7:03:44 PM
π Sunset7:41:26 PM
π Dusk8:11:14 PM
Day length14:22:42
Data via sunrisesunset.io
Current Weather
Conditionπ¦οΈ Drizzle
Temperature16Β°C
Feels like17Β°C
Humidity92%
Wind4 mph NE
Data via Open-Meteo Β· Updates every 30 min
Moon Phase
Phaseπ Waxing Crescent
Illumination24%
CycleWaxing
Moon age4.8 days
Moonrise09:13
Moonset00:23
Shanghai
Dragon Boat Festival
Jun 19in 30dMid-Autumn Festival
Sep 25in 128dNational Day
Oct 1in 134d
Daylight Cycle
π
Dawn4:29:00 AM
βοΈ Sunrise4:55:56 AM
π Solar Noon11:52:05 AM
π Golden Hour6:13:45 PM
π Sunset6:48:15 PM
π Dusk7:15:11 PM
Day length13:52:19
Data via sunrisesunset.io
Current Weather
ConditionβοΈ Overcast
Temperature25Β°C
Feels like27Β°C
Humidity69%
Wind7 mph NW
Data via Open-Meteo Β· Updates every 30 min
Moon Phase
Phaseπ Waxing Crescent
Illumination24%
CycleWaxing
Moon age4.8 days
Moonrise08:55
Moonset23:30