Time difference between San Francisco and Seoul
Compare the current local time in San Francisco and Seoul, see when your working hours overlap, and convert any specific hour between the two timezones.
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Convert a specific time
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Working-hours overlap
When San Francisco's 9:00–17:00 business hours overlap with Seoul's.
San Francisco working hours
Seoul working hours
Overlap (both working)
🇺🇸 San Francisco
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🇰🇷 Seoul
Scheduling across San Francisco and Seoul
Scheduling between San Francisco and Seoul is hard. Their standard business hours do not overlap on the same day, but the two working days meet at a single point: San Francisco's close at 17:00 coincides exactly with Seoul's open at 09:00. A call timed to that boundary catches both sides at the edge of their day.
Quick reference
| 🇺🇸 San Francisco | 🇰🇷 Seoul | In Seoul it's… |
|---|---|---|
| 06:00 — Early morning | — | — |
| 09:00 — Start of work | — | — |
| 12:00 — Lunchtime | — | — |
| 15:00 — Mid-afternoon | — | — |
| 17:00 — End of work | — | — |
| 20:00 — Evening | — | — |
Daylight saving status
🇺🇸 San Francisco
Currently in PDT (daylight saving)
Clocks go back to PST
on Sunday 1 November 2026
🇰🇷 Seoul
Seoul does not observe daylight saving time. The local offset is fixed year-round.