Great Falls, MT to Chiang Mai: time difference
Chiang Mai is 13 h ahead of Great Falls, MT. 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.
Great Falls, MT 21:14 9:14 PM Chiang Mai 10:14 10:14 AM You –:–
21:14 9:14 PM
Mountain Daylight Time · UTC-6
☀️ 07:37 · 🌙 18:48
10:14 10:14 AM
Indochina Time · UTC+7
☀️ 06:17 · 🌙 18:06
·
+13 h
Chiang Mai is 13 h ahead of Great Falls, MT.
When you, Great Falls, MT 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
🇺🇸 Great Falls, MT
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
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 10 10 AM 11 11 AM 12 12 PM
📍 Your time
- Asleep
- Early
- Working hours
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Time zones side by side
| Detail | 🇺🇸 Great Falls, MT | 🇹🇭 Chiang Mai |
|---|---|---|
| Local time | 21:14 | 10:14 |
| Local date | Saturday, October 10, 2026 | Sunday, October 11, 2026 |
| Time zone | Mountain Daylight Time | Indochina Time |
| UTC offset | UTC-6 | UTC+7 |
| Offset from Great Falls, MT | — | +13 h |
| IANA zone | America/Denver | Asia/Bangkok |
| Daylight saving | On summer time → UTC-7, Nov 1, 01:00 | Not observed |
| Sunrise | 07:37 | 06:17 |
| Sunset | 18:48 | 18:06 |
| Daylight | 11 h 11 min | 11 h 48 min |
| People on this clock | 60,442 | 127,240 |
Compare Great Falls, MT with another city
More comparisons with Great Falls, MT: the time zones next to it and the far side of the clock.
Nearby time zones
Great Falls, MT and Chiang Mai: common questions
How many hours ahead of Great Falls, MT, is Chiang Mai?
The clocks in Chiang Mai are 13 hours ahead of those in Great Falls (UTC+7 and UTC−6).
If it is 9:00 AM in Great Falls, MT, what time is it in Chiang Mai?
At 9:00 AM in Great Falls, clocks in Chiang Mai show 10:00 PM.
What time is it in Chiang Mai when it is 6:00 PM in Great Falls, MT?
When it is 6:00 PM in Great Falls, it is 7:00 AM (the next day) in Chiang Mai.
Is there a time when both Great Falls, MT, and Chiang Mai are at work?
No, the working days (9:00 AM–6:00 PM) do not overlap. When the day starts in Great Falls at 9:00 AM, it is 10:00 PM in Chiang Mai; the day in Chiang Mai starts at 8:00 PM (the previous day) in Great Falls time.
When does the date change in Chiang Mai compared with Great Falls, MT?
The new day starts in Chiang Mai earlier: at 11:00 AM in Great Falls it is already midnight there. Until 1:00 PM in Chiang Mai, Great Falls is still on the previous day.
Does the time difference between Great Falls, MT, and Chiang Mai change?
Yes. The clocks change only in Great Falls. From November 1, 2026, Chiang Mai will be 14 hours ahead of Great Falls.
