Great Falls, MT to Phuket: time difference
Phuket 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 22:07 10:07 PM Phuket 11:07 11:07 AM You –:–
22:07 10:07 PM
Mountain Daylight Time · UTC-6
☀️ 07:37 · 🌙 18:48
11:07 11:07 AM
Indochina Time · UTC+7
☀️ 06:14 · 🌙 18:14
·
+13 h
Phuket is 13 h ahead of Great Falls, MT.
When you, Great Falls, MT and Phuket 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
🇹🇭 Phuket
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
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Time zones side by side
| Detail | 🇺🇸 Great Falls, MT | 🇹🇭 Phuket |
|---|---|---|
| Local time | 22:07 | 11:07 |
| 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 | 06:14 |
| Sunset | 18:48 | 18:14 |
| Daylight | 11 h 11 min | 11 h 59 min |
| People on this clock | 60,442 | 79,308 |
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
Big time differences
Great Falls, MT and Phuket: common questions
How far ahead of Great Falls, MT, is Phuket?
Phuket is 13 hours ahead of Great Falls: UTC+7 against UTC−6.
What time is it in Phuket when it is 9:00 AM in Great Falls, MT?
When it is 9:00 AM in Great Falls, it is 10:00 PM in Phuket.
What time is it in Phuket at the end of the working day in Great Falls, MT?
The working day in Great Falls ends at 6:00 PM; in Phuket it is 7:00 AM (the next day) at that moment.
When is a good time to call Phuket from Great Falls, MT?
Working hours (9:00 AM–6:00 PM) in Great Falls and in Phuket do not overlap. At 9:00 AM in Great Falls it is 10:00 PM in Phuket; when the working day starts in Phuket, it is 8:00 PM (the previous day) in Great Falls.
When is it already the next day in Phuket?
From 11:00 AM in Great Falls, MT, it is already the next day in Phuket. The other way round, until 1:00 PM in Phuket it is still the previous day in Great Falls.
Is the time difference between Great Falls, MT, and Phuket the same all year?
No. Only Great Falls switches to summer time, so the gap changes twice a year. From November 1, 2026, Phuket will be 14 hours ahead of Great Falls.
