Seoul to San Francisco Time Difference
🇰🇷 Seoul is currently 16 hours behind of 🇺🇸 San Francisco. This difference varies between 17h and 16h due to Daylight Saving Time.
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Atin 🇰🇷 Seoul→it will be—in 🇺🇸 San Francisco
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Difference
-16h
Business overlap
1h
Distance
9,029 km
Approx. flight
10.6h
Hour-by-Hour: Seoul to San Francisco
| 🇰🇷 Seoul | 🇺🇸 San Francisco | Note |
|---|---|---|
| 12:00 AM | 8:00 AM | |
| 1:00 AM | 9:00 AM | |
| 2:00 AM | 10:00 AM | |
| 3:00 AM | 11:00 AM | |
| 4:00 AM | 12:00 PM | |
| 5:00 AM | 1:00 PM | |
| 6:00 AM | 2:00 PM | |
| 7:00 AM | 3:00 PM | |
| 8:00 AM | 4:00 PM | |
| 9:00 AM | 5:00 PM | |
| 10:00 AM | 6:00 PM | |
| 11:00 AM | 7:00 PM | |
| 12:00 PM | 8:00 PM | |
| 1:00 PM | 9:00 PM | |
| 2:00 PM | 10:00 PM | |
| 3:00 PM | 11:00 PM | |
| 4:00 PM | 12:00 AM(next day) | Next day |
| 5:00 PM | 1:00 AM(next day) | Next day |
| 6:00 PM | 2:00 AM(next day) | Next day |
| 7:00 PM | 3:00 AM(next day) | Next day |
| 8:00 PM | 4:00 AM(next day) | Next day |
| 9:00 PM | 5:00 AM(next day) | Next day |
| 10:00 PM | 6:00 AM(next day) | Next day |
| 11:00 PM | 7:00 AM(next day) | Next day |
Daylight Saving Time (DST)
San Francisco observes Daylight Saving Time, while Seoul does not. This causes the time difference to shift between 17 hours behind and 16 hours behind depending on the season. Currently, Seoul is 16 hours behind relative to San Francisco.
Min difference
17h
Max difference
16h
Best Meeting Times
There are 1 overlapping business hours between Seoul and San Francisco (9 AM – 6 PM in each city).
🇰🇷 Seoul
9:00 AM – 10:00 AM
🇺🇸 San Francisco
5:00 PM – 6:00 PM
Frequently Asked Questions
What is the time difference between Seoul and San Francisco?
The time difference between Seoul and San Francisco is currently 16 hours behind. Seoul uses GMT+9 (UTC+9), while San Francisco uses PDT (UTC-7). This difference varies seasonally due to Daylight Saving Time, ranging from 17 hours behind to 16 hours behind.
When it's noon in Seoul, what time is it in San Francisco?
When it's 12:00 PM (noon) in Seoul, it is 8:00 PM in San Francisco. Use our calculator above to convert any other time.
Does the time difference between Seoul and San Francisco change?
Yes, the time difference changes throughout the year. Because San Francisco observes Daylight Saving Time, the offset shifts between 17 hours behind and 16 hours behind at different times of the year.
What are the best times to schedule a call between Seoul and San Francisco?
The best time to call is between 9:00 AM and 10:00 AM in Seoul (which is 5:00 PM – 6:00 PM in San Francisco). This 1-hour window falls within business hours in both cities.
Is Seoul ahead or behind San Francisco?
Seoul is currently 16 hours ahead of San Francisco.
What time zone is Seoul in?
Seoul is in the Asia/Seoul time zone, currently using GMT+9 (UTC+9). Seoul does not observe Daylight Saving Time.
What time is midnight in Seoul in San Francisco?
When it is midnight (12:00 AM) in Seoul, it is 8:00 AM in San Francisco.