Bangkok to San Francisco Time Difference
San Francisco is 14 hours behind Bangkok. When it's 11:29:46 PM in Bangkok, it's 09:29:46 AM in San Francisco.
How Many Hours Behind Is San Francisco From Bangkok?
San Francisco is 14 hours behind Bangkok. So Bangkok is 14 hours ahead of San Francisco looking the other way — the same gap, described from the other end.
In practice that means a working day in Bangkok starts when it is already 7:00 PM the previous day in San Francisco. The gap is not fixed all year: it becomes 15 hours on Sunday, November 1, 2026, when San Francisco changes its clocks.
Best Time to Call Bangkok and San Francisco
Standard 9-to-5 hours in Bangkok and San Francisco never overlap, so someone has to take the call outside their working day. The most workable window is 7:00 AM to 12:00 PM in Bangkok, which is 5:00 PM to 10:00 PM in San Francisco.
both at work Bangkok only San Francisco only neither — hours shown along the strip are Bangkok local time.
Convert a Specific Time
Pick any date and time in Bangkok to see the exact equivalent in San Francisco.
Common Times Converted
Bangkok time on the left, San Francisco time on the right.
Bangkok to San Francisco: Full 24-Hour Conversion Table
Based on today, Sunday, October 11, 2026 in Bangkok. Shaded rows are working hours; the darker shade marks the hours when both cities are at work.
| Bangkok | San Francisco | Working hours |
|---|---|---|
| 12:00 AM | 10:00 AM prev day | San Francisco only |
| 1:00 AM | 11:00 AM prev day | San Francisco only |
| 2:00 AM | 12:00 PM prev day | San Francisco only |
| 3:00 AM | 1:00 PM prev day | San Francisco only |
| 4:00 AM | 2:00 PM prev day | San Francisco only |
| 5:00 AM | 3:00 PM prev day | San Francisco only |
| 6:00 AM | 4:00 PM prev day | San Francisco only |
| 7:00 AM | 5:00 PM prev day | — |
| 8:00 AM | 6:00 PM prev day | — |
| 9:00 AM | 7:00 PM prev day | Bangkok only |
| 10:00 AM | 8:00 PM prev day | Bangkok only |
| 11:00 AM | 9:00 PM prev day | Bangkok only |
| 12:00 PM | 10:00 PM prev day | Bangkok only |
| 1:00 PM | 11:00 PM prev day | Bangkok only |
| 2:00 PM | 12:00 AM | Bangkok only |
| 3:00 PM | 1:00 AM | Bangkok only |
| 4:00 PM | 2:00 AM | Bangkok only |
| 5:00 PM | 3:00 AM | — |
| 6:00 PM | 4:00 AM | — |
| 7:00 PM | 5:00 AM | — |
| 8:00 PM | 6:00 AM | — |
| 9:00 PM | 7:00 AM | — |
| 10:00 PM | 8:00 AM | — |
| 11:00 PM | 9:00 AM | San Francisco only |
Understanding the Bangkok – San Francisco Time Difference
Bangkok runs on Asia/Bangkok, currently UTC+7:00. San Francisco runs on America/Los_Angeles, currently PDT (UTC-7:00). The gap of 14 hours is simply the distance between those two offsets.
San Francisco observes Daylight Saving Time and Bangkok does not, so the gap between them shifts by an hour twice a year. The next shift is on Sunday, November 1, 2026, when San Francisco adjusts its clocks and the difference becomes 15 hours. Anything scheduled across that date needs checking again.
Full clock-change dates: Daylight Saving Time in the United States.
Bangkok today
San Francisco today
Frequently Asked Questions
What is the time difference between Bangkok and San Francisco?
San Francisco is currently 14 hours behind Bangkok. That gap becomes 15 hours on Sunday, November 1, 2026, when San Francisco changes its clocks.
How many hours behind is San Francisco from Bangkok?
San Francisco is 14 hours behind Bangkok. Looking at it the other way, Bangkok is 14 hours ahead of San Francisco.
What time is it in San Francisco when it is 9:00 AM in Bangkok?
When it is 9:00 AM in Bangkok, it is 7:00 PM the previous day in San Francisco.
Is San Francisco ahead of or behind Bangkok?
San Francisco is 14 hours behind Bangkok. Bangkok reaches each point in the day first, so San Francisco is still getting started while the Bangkok working day is finishing.
What is the best time to call between Bangkok and San Francisco?
Standard business hours in Bangkok and San Francisco do not overlap at all, so one side has to step outside the 9-to-5. The most workable window is 7:00 AM to 12:00 PM in Bangkok, which is 5:00 PM to 10:00 PM in San Francisco.
Does the time difference between Bangkok and San Francisco change during the year?
Yes. San Francisco observes Daylight Saving Time and Bangkok does not, so the gap between them shifts during the year. It changes to 15 hours on Sunday, November 1, 2026.
What time zones are Bangkok and San Francisco in?
Bangkok uses the Asia/Bangkok time zone, currently UTC+7:00. San Francisco uses America/Los_Angeles, currently PDT (UTC-7:00).