Chiang Mai to Foster City, CA: time difference
Foster City, CA is 14 h behind Chiang Mai. 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.
Chiang Mai 15:49 3:49 PM Foster City, CA 01:49 1:49 AM You –:–
15:49 3:49 PM
Indochina Time · UTC+7
☀️ 06:21 · 🌙 17:58
01:49 1:49 AM
Pacific Daylight Time · UTC-7
☀️ 07:25 · 🌙 18:24
·
−14 h
Foster City, CA is 14 h behind Chiang Mai.
When you, Chiang Mai and Foster City, CA are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇹🇭 Chiang Mai
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
🇺🇸 Foster City, CA
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 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
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇹🇭 Chiang Mai | 🇺🇸 Foster City, CA |
|---|---|---|
| Local time | 15:49 | 01:49 |
| Local date | Thursday, October 22, 2026 | Thursday, October 22, 2026 |
| Time zone | Indochina Time | Pacific Daylight Time |
| UTC offset | UTC+7 | UTC-7 |
| Offset from Chiang Mai | — | −14 h |
| IANA zone | Asia/Bangkok | America/Los Angeles |
| Daylight saving | Not observed | On summer time → UTC-8, Nov 1, 01:00 |
| Sunrise | 06:21 | 07:25 |
| Sunset | 17:58 | 18:24 |
| Daylight | 11 h 37 min | 10 h 59 min |
| People on this clock | 127,240 | 30,567 |
Compare Chiang Mai with another city
More comparisons with Chiang Mai: the time zones next to it and the far side of the clock.
Big time differences
Chiang Mai and Foster City, CA: common questions
What is the time difference between Chiang Mai and Foster City, CA?
Foster City is 14 hours behind: it uses UTC−7, while Chiang Mai is on UTC+7.
If it is 9:00 AM in Chiang Mai, what time is it in Foster City, CA?
At 9:00 AM in Chiang Mai, clocks in Foster City show 7:00 PM (the previous day).
If it is 6:00 PM in Chiang Mai, what time is it in Foster City, CA?
At 6:00 PM in Chiang Mai, clocks in Foster City show 4:00 AM.
When do working hours in Chiang Mai and in Foster City, CA, overlap?
They don't: there are no shared working hours. The start of the day in Chiang Mai (9:00 AM) is 7:00 PM (the previous day) in Foster City, and the start of the day in Foster City is 11:00 PM in Chiang Mai.
When does the date change in Foster City, CA, compared with Chiang Mai?
The new day starts in Foster City later: until 2:00 PM in Chiang Mai, it is still the previous day there. From 10:00 AM in Foster City, Chiang Mai is already on the next day.
Does the time difference between Chiang Mai and Foster City, CA, change?
Yes. The clocks change only in Foster City. From November 1, 2026, Foster City will be 15 hours behind Chiang Mai.
