Chiang Mai to Rancho Cucamonga, CA: time difference
Rancho Cucamonga, 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 02:34 2:34 AM Rancho Cucamonga, CA 12:34 12:34 PM You –:–
02:34 2:34 AM
Indochina Time · UTC+7
☀️ 06:19 · 🌙 18:01
12:34 12:34 PM
Pacific Daylight Time · UTC-7
☀️ 06:58 · 🌙 18:15
·
−14 h
Rancho Cucamonga, CA is 14 h behind Chiang Mai.
When you, Chiang Mai and Rancho Cucamonga, 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
🇺🇸 Rancho Cucamonga, 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 | 🇺🇸 Rancho Cucamonga, CA |
|---|---|---|
| Local time | 02:34 | 12:34 |
| 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 | 06:58 |
| Sunset | 18:01 | 18:15 |
| Daylight | 11 h 41 min | 11 h 17 min |
| People on this clock | 127,240 | 170,714 |
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 Rancho Cucamonga, CA: common questions
How many hours behind Chiang Mai is Rancho Cucamonga, CA?
The clocks in Rancho Cucamonga are 14 hours behind those in Chiang Mai (UTC−7 and UTC+7).
What time is it in Rancho Cucamonga, CA, when it is 9:00 AM in Chiang Mai?
When it is 9:00 AM in Chiang Mai, it is 7:00 PM (the previous day) in Rancho Cucamonga.
What time is it in Rancho Cucamonga, CA, at the end of the working day in Chiang Mai?
The working day in Chiang Mai ends at 6:00 PM; in Rancho Cucamonga it is 4:00 AM at that moment.
When is a good time to call Rancho Cucamonga, CA, from Chiang Mai?
Working hours (9:00 AM–6:00 PM) in Chiang Mai and in Rancho Cucamonga do not overlap. At 9:00 AM in Chiang Mai it is 7:00 PM (the previous day) in Rancho Cucamonga; when the working day starts in Rancho Cucamonga, it is 11:00 PM in Chiang Mai.
When does the date change in Rancho Cucamonga, CA, compared with Chiang Mai?
The new day starts in Rancho Cucamonga later: until 2:00 PM in Chiang Mai, it is still the previous day there. From 10:00 AM in Rancho Cucamonga, Chiang Mai is already on the next day.
Is the time difference between Chiang Mai and Rancho Cucamonga, CA, the same all year?
No. Only Rancho Cucamonga switches to summer time, so the gap changes twice a year. From November 1, 2026, Rancho Cucamonga will be 15 hours behind Chiang Mai.
