Foster City, CA to Chiang Mai: time difference
Chiang Mai is 14 h ahead of Foster City, CA. Live clocks for both, the working hours they share, and how each one sits against your own time.
Your time
One day, 2 clocks
Drag along the band to read any hour in every place at once.
Foster City, CA 23:51 11:51 PM Chiang Mai 13:51 1:51 PM You –:–
23:51 11:51 PM
Pacific Daylight Time · UTC-7
☀️ 07:24 · 🌙 18:25
13:51 1:51 PM
Indochina Time · UTC+7
☀️ 06:21 · 🌙 17:58
·
+14 h
Chiang Mai is 14 h ahead of Foster City, CA.
When you, Foster City, CA and Chiang Mai are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇺🇸 Foster City, CA
0 12 AM 1 1 AM 2 2 AM 3 3 AM 4 4 AM 5 5 AM 6 6 AM 7 7 AM 8 8 AM 9 9 AM 10 10 AM 11 11 AM 12 12 PM 13 1 PM 14 2 PM 15 3 PM 16 4 PM 17 5 PM 18 6 PM 19 7 PM 20 8 PM 21 9 PM 22 10 PM 23 11 PM
🇹🇭 Chiang Mai
14 2 PM 15 3 PM 16 4 PM 17 5 PM 18 6 PM 19 7 PM 20 8 PM 21 9 PM 22 10 PM 23 11 PM 0 12 AM 1 1 AM 2 2 AM 3 3 AM 4 4 AM 5 5 AM 6 6 AM 7 7 AM 8 8 AM 9 9 AM 10 10 AM 11 11 AM 12 12 PM 13 1 PM
📍 Your time
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Time zones side by side
| Detail | 🇺🇸 Foster City, CA | 🇹🇭 Chiang Mai |
|---|---|---|
| Local time | 23:51 | 13:51 |
| Local date | Wednesday, October 21, 2026 | Thursday, October 22, 2026 |
| Time zone | Pacific Daylight Time | Indochina Time |
| UTC offset | UTC-7 | UTC+7 |
| Offset from Foster City, CA | — | +14 h |
| IANA zone | America/Los Angeles | Asia/Bangkok |
| Daylight saving | On summer time → UTC-8, Nov 1, 01:00 | Not observed |
| Sunrise | 07:24 | 06:21 |
| Sunset | 18:25 | 17:58 |
| Daylight | 11 h 1 min | 11 h 37 min |
| People on this clock | 30,567 | 127,240 |
Compare Foster City, CA with another city
More comparisons with Foster City, CA: the time zones next to it and the far side of the clock.
Nearby time zones
Foster City, CA and Chiang Mai: common questions
What is the time difference between Foster City, CA, and Chiang Mai?
Chiang Mai is 14 hours ahead: it uses UTC+7, while Foster City is on UTC−7.
If it is 9:00 AM in Foster City, CA, what time is it in Chiang Mai?
At 9:00 AM in Foster City, clocks in Chiang Mai show 11:00 PM.
If it is 6:00 PM in Foster City, CA, what time is it in Chiang Mai?
At 6:00 PM in Foster City, clocks in Chiang Mai show 8:00 AM (the next day).
When is a good time to call Chiang Mai from Foster City, CA?
Working hours (9:00 AM–6:00 PM) in Foster City and in Chiang Mai do not overlap. At 9:00 AM in Foster City it is 11:00 PM in Chiang Mai; when the working day starts in Chiang Mai, it is 7:00 PM (the previous day) in Foster City.
When is it already the next day in Chiang Mai?
From 10:00 AM in Foster City, CA, it is already the next day in Chiang Mai. The other way round, until 2:00 PM in Chiang Mai it is still the previous day in Foster City.
Is the time difference between Foster City, CA, and Chiang Mai the same all year?
No. Only Foster City switches to summer time, so the gap changes twice a year. From November 1, 2026, Chiang Mai will be 15 hours ahead of Foster City.
