Chiang Mai to Fontana, CA: time difference
Fontana, 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 04:22 4:22 AM Fontana, CA 14:22 2:22 PM You –:–
04:22 4:22 AM
Indochina Time · UTC+7
☀️ 06:20 · 🌙 17:58
14:22 2:22 PM
Pacific Daylight Time · UTC-7
☀️ 07:00 · 🌙 18:11
·
−14 h
Fontana, CA is 14 h behind Chiang Mai.
When you, Chiang Mai and Fontana, 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
🇺🇸 Fontana, 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 | 🇺🇸 Fontana, CA |
|---|---|---|
| Local time | 04:22 | 14:22 |
| Local date | Wednesday, October 21, 2026 | Tuesday, October 20, 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 | 06:20 | 07:00 |
| Sunset | 17:58 | 18:11 |
| Daylight | 11 h 38 min | 11 h 11 min |
| People on this clock | 127,240 | 210,000 |
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 Fontana, CA: common questions
How many hours behind Chiang Mai is Fontana, CA?
The clocks in Fontana are 14 hours behind those in Chiang Mai (UTC−7 and UTC+7).
What time is it in Fontana, CA, at the start of the working day in Chiang Mai?
The working day in Chiang Mai starts at 9:00 AM; in Fontana it is 7:00 PM (the previous day) at that moment.
What time is it in Fontana, CA, at the end of the working day in Chiang Mai?
The working day in Chiang Mai ends at 6:00 PM; in Fontana it is 4:00 AM at that moment.
When is a good time to call Fontana, CA, from Chiang Mai?
Working hours (9:00 AM–6:00 PM) in Chiang Mai and in Fontana do not overlap. At 9:00 AM in Chiang Mai it is 7:00 PM (the previous day) in Fontana; when the working day starts in Fontana, it is 11:00 PM in Chiang Mai.
When does the date change in Fontana, CA, compared with Chiang Mai?
The new day starts in Fontana later: until 2:00 PM in Chiang Mai, it is still the previous day there. From 10:00 AM in Fontana, Chiang Mai is already on the next day.
Does the time gap between Chiang Mai and Fontana, CA, change during the year?
Yes – daylight saving time is used in Fontana but not in Chiang Mai. From November 1, 2026, Fontana will be 15 hours behind Chiang Mai.
