City time difference

San Francisco and Seoul time difference

Compare Silicon Valley and Seoul working hours at a glance. Pick a date to see every local hour without doing the conversion yourself.

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Current local times

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San Francisco—United States · UTC offset · America/Los_Angeles

Seoul—South Korea · UTC offset · Asia/Seoul

San Francisco and Seoul currently show the same local time.

24-hour comparison starting in San Francisco Highlighted hours are 09:00–17:00 in both cities.

This local date does not have a resolvable midnight. Choose another date.

Daylight saving checked

Does this time difference change?

Yes. During the year, Seoul can be 16 hours ahead or 17 hours ahead relative to San Francisco. Their daylight-saving schedules do not move on exactly the same dates.

The comparison uses America/Los_Angeles and Asia/Seoul, not fixed abbreviations.