Chiang Mai to Costa Mesa, CA: time difference
Costa Mesa, 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 00:38 12:38 AM Costa Mesa, CA 10:38 10:38 AM You –:–
00:38 12:38 AM
Indochina Time · UTC+7
☀️ 06:19 · 🌙 18:01
10:38 10:38 AM
Pacific Daylight Time · UTC-7
☀️ 06:59 · 🌙 18:17
·
−14 h
Costa Mesa, CA is 14 h behind Chiang Mai.
When you, Chiang Mai and Costa Mesa, 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
🇺🇸 Costa Mesa, 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 | 🇺🇸 Costa Mesa, CA |
|---|---|---|
| Local time | 00:38 | 10:38 |
| Local date | Sunday, October 18, 2026 | Saturday, October 17, 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 | 06:19 | 06:59 |
| Sunset | 18:01 | 18:17 |
| Daylight | 11 h 41 min | 11 h 18 min |
| People on this clock | 127,240 | 109,960 |
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 Costa Mesa, CA: common questions
How far behind Chiang Mai is Costa Mesa, CA?
Costa Mesa is 14 hours behind Chiang Mai: UTC−7 against UTC+7.
If it is 9:00 AM in Chiang Mai, what time is it in Costa Mesa, CA?
At 9:00 AM in Chiang Mai, clocks in Costa Mesa show 7:00 PM (the previous day).
If it is 6:00 PM in Chiang Mai, what time is it in Costa Mesa, CA?
At 6:00 PM in Chiang Mai, clocks in Costa Mesa show 4:00 AM.
When do working hours in Chiang Mai and in Costa Mesa, 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 Costa Mesa, and the start of the day in Costa Mesa is 11:00 PM in Chiang Mai.
When does the date change in Costa Mesa, CA, compared with Chiang Mai?
The new day starts in Costa Mesa later: until 2:00 PM in Chiang Mai, it is still the previous day there. From 10:00 AM in Costa Mesa, Chiang Mai is already on the next day.
Is the time difference between Chiang Mai and Costa Mesa, CA, the same all year?
No. Only Costa Mesa switches to summer time, so the gap changes twice a year. From November 1, 2026, Costa Mesa will be 15 hours behind Chiang Mai.
