San Francisco → Seoul: Time Difference
Seoul is 16 hours ahead of San Francisco.
How the difference works
San Francisco uses America/Los_Angeles (UTC-8 standard time) and Seoul uses Asia/Seoul (UTC+9 standard time) — a standard-time gap of 17 hours ahead of San Francisco. San Francisco observes daylight saving time while Seoul does not, so the difference shifts by one hour twice a year.
Distance: about 9,029 km (5,610 mi) great-circle distance.
San Francisco → Seoul, hour by hour
| San Francisco | Seoul | Best hours to call |
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Frequently asked questions
What is the time difference between San Francisco and Seoul?
In standard time, Seoul is 17 hours ahead of San Francisco. San Francisco observes daylight saving time while Seoul does not, so the difference shifts by one hour twice a year.
When it is 9:00 in San Francisco, what time is it in Seoul?
In standard time it is 02:00 the next day in Seoul. During daylight saving periods the answer can move by an hour — the live table on this page always reflects today's rules.
How far is Seoul from San Francisco?
About 9,029 km (5,610 miles) as the crow flies, computed from city-center coordinates.
San Francisco → Time Difference
- San Francisco → New York
- San Francisco → Los Angeles
- San Francisco → Chicago
- San Francisco → Washington, D.C.
- San Francisco → Miami
- San Francisco → Las Vegas
- San Francisco → Honolulu
- San Francisco → Vancouver
- San Francisco → Frankfurt
- San Francisco → Zurich
- San Francisco → Bangkok
- San Francisco → Jakarta
- Seoul → San Francisco