Ontario, CA to Chiang Mai: time difference
Chiang Mai is 14 h ahead of Ontario, 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.
Ontario, CA 09:53 9:53 AM Chiang Mai 23:53 11:53 PM You –:–
09:53 9:53 AM
Pacific Daylight Time · UTC-7
☀️ 06:58 · 🌙 18:15
23:53 11:53 PM
Indochina Time · UTC+7
☀️ 06:19 · 🌙 18:01
·
+14 h
Chiang Mai is 14 h ahead of Ontario, CA.
When you, Ontario, 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
🇺🇸 Ontario, 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
- Asleep
- Early
- Working hours
- Evening
- Both working
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Time zones side by side
| Detail | 🇺🇸 Ontario, CA | 🇹🇭 Chiang Mai |
|---|---|---|
| Local time | 09:53 | 23:53 |
| Local date | Saturday, October 17, 2026 | Saturday, October 17, 2026 |
| Time zone | Pacific Daylight Time | Indochina Time |
| UTC offset | UTC-7 | UTC+7 |
| Offset from Ontario, CA | — | +14 h |
| IANA zone | America/Los Angeles | Asia/Bangkok |
| Daylight saving | On summer time → UTC-8, Nov 1, 01:00 | Not observed |
| Sunrise | 06:58 | 06:19 |
| Sunset | 18:15 | 18:01 |
| Daylight | 11 h 17 min | 11 h 42 min |
| People on this clock | 185,000 | 127,240 |
Compare Ontario, CA with another city
More comparisons with Ontario, CA: the time zones next to it and the far side of the clock.
Nearby time zones
Ontario, CA and Chiang Mai: common questions
How far ahead of Ontario, CA, is Chiang Mai?
Chiang Mai is 14 hours ahead of Ontario: UTC+7 against UTC−7.
What time is it in Chiang Mai at the start of the working day in Ontario, CA?
The working day in Ontario starts at 9:00 AM; in Chiang Mai it is 11:00 PM at that moment.
If it is 6:00 PM in Ontario, CA, what time is it in Chiang Mai?
At 6:00 PM in Ontario, clocks in Chiang Mai show 8:00 AM (the next day).
When do working hours in Ontario, CA, and in Chiang Mai overlap?
They don't: there are no shared working hours. The start of the day in Ontario (9:00 AM) is 11:00 PM in Chiang Mai, and the start of the day in Chiang Mai is 7:00 PM (the previous day) in Ontario.
When does the date change in Chiang Mai compared with Ontario, CA?
The new day starts in Chiang Mai earlier: at 10:00 AM in Ontario it is already midnight there. Until 2:00 PM in Chiang Mai, Ontario is still on the previous day.
Does the time difference between Ontario, CA, and Chiang Mai change?
Yes. The clocks change only in Ontario. From November 1, 2026, Chiang Mai will be 15 hours ahead of Ontario.
