San José
Exact time synced with atomic clocks (IANA + NTP)
Wednesday, May 20, 2026
Costa Rica · America/Costa_Rica · CST
San José and Seoul Time Difference
San José is 15h behind Seoul
Seoul
Exact time synced with atomic clocks (IANA + NTP)
Thursday, May 21, 2026
South Korea · Asia/Seoul · GMT+9
Best time for work calls
If you are scheduling a call between San José and Seoul, 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
San José and Seoul have a comfortable window for a family call — no awkward alarms required. San José is 15 hours behind Seoul, which gives you 4 hours of genuine overlap when both sides are free. Aim for between 6 pm and 10 pm in San José — that lands at 9 am to 1 pm in Seoul, 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.
San José
Annexation of the Party of Nicoya to Costa Rica
Jul 25in 66dFeast of Our Lady of the Angels
Aug 2in 74dMother's Day
Aug 15in 87d
Daylight Cycle
🌅 Dawn4:48:30 AM
☀️ Sunrise5:11:00 AM
🌞 Solar Noon11:34:19 AM
🌇 Golden Hour5:28:05 PM
🌆 Sunset5:57:38 PM
🌃 Dusk6:20:09 PM
Day length12:46:37
Data via sunrisesunset.io
Current Weather
Condition☁️ Overcast
Temperature21°C
Feels like22°C
Humidity79%
Wind6 mph E
Data via Open-Meteo · Updates every 30 min
Moon Phase
Phase🌒 Waxing Crescent
Illumination24%
CycleWaxing
Moon age4.8 days
Moonrise09:59
Moonset22:08
Seoul
Buddha's Birthday
May 24in 4dMemorial Day
Jun 6in 17dConstitution Day
Jul 17in 58d
Daylight Cycle
🌅 Dawn4:48:55 AM
☀️ Sunrise5:18:43 AM
🌞 Solar Noon12:30:04 PM
🌇 Golden Hour7:03:44 PM
🌆 Sunset7:41:26 PM
🌃 Dusk8:11:14 PM
Day length14:22:42
Data via sunrisesunset.io
Current Weather
Condition🌦️ Drizzle
Temperature16°C
Feels like17°C
Humidity92%
Wind4 mph NE
Data via Open-Meteo · Updates every 30 min
Moon Phase
Phase🌒 Waxing Crescent
Illumination24%
CycleWaxing
Moon age4.8 days
Moonrise09:13
Moonset00:23