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Time Difference: San Francisco to Seoul
🇺🇸San FranciscoUTC-8
vs🇰🇷SeoulUTC+9
🇺🇸
San Francisco, US
Thu, Apr 16
🇰🇷
Seoul, South Korea
Fri, Apr 17
Click a time to convert
Time Difference
16 hours
Seoul is 16 hours ahead of San Francisco
San Francisco vs Seoul timezone guide
San Francisco (US) uses the America/Los_Angeles timezone at UTC-8, while Seoul (South Korea) uses Asia/Seoul at UTC+9. This means Seoul is 17 hours ahead of San Francisco (based on standard offsets — the live difference above accounts for daylight saving time).
When scheduling a call or meeting between San Francisco and Seoul, look for the overlapping work hours highlighted above. The live clocks on this page update every second, and the difference adjusts automatically when either city enters or exits daylight saving time.