Phuket to Great Falls, MT: time difference
Great Falls, MT is 13 h behind Phuket. 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.
Phuket 12:02 12:02 PM Great Falls, MT 23:02 11:02 PM You –:–
12:02 12:02 PM
Indochina Time · UTC+7
☀️ 06:14 · 🌙 18:14
23:02 11:02 PM
Mountain Daylight Time · UTC-6
☀️ 07:37 · 🌙 18:48
·
−13 h
Great Falls, MT is 13 h behind Phuket.
When you, Phuket and Great Falls, MT are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇹🇭 Phuket
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
🇺🇸 Great Falls, MT
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 10 10 AM
📍 Your time
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- Working hours
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Time zones side by side
| Detail | 🇹🇭 Phuket | 🇺🇸 Great Falls, MT |
|---|---|---|
| Local time | 12:02 | 23:02 |
| Local date | Sunday, October 11, 2026 | Saturday, October 10, 2026 |
| Time zone | Indochina Time | Mountain Daylight Time |
| UTC offset | UTC+7 | UTC-6 |
| Offset from Phuket | — | −13 h |
| IANA zone | Asia/Bangkok | America/Denver |
| Daylight saving | Not observed | On summer time → UTC-7, Nov 1, 01:00 |
| Sunrise | 06:14 | 07:37 |
| Sunset | 18:14 | 18:48 |
| Daylight | 11 h 59 min | 11 h 11 min |
| People on this clock | 79,308 | 60,442 |
Compare Phuket with another city
More comparisons with Phuket: the time zones next to it and the far side of the clock.
Big time differences
Phuket and Great Falls, MT: common questions
How far behind Phuket is Great Falls, MT?
Great Falls is 13 hours behind Phuket: UTC−6 against UTC+7.
What time is it in Great Falls, MT, at the start of the working day in Phuket?
The working day in Phuket starts at 9:00 AM; in Great Falls it is 8:00 PM (the previous day) at that moment.
What time is it in Great Falls, MT, at the end of the working day in Phuket?
The working day in Phuket ends at 6:00 PM; in Great Falls it is 5:00 AM at that moment.
Is there a time when both Phuket and Great Falls, MT, are at work?
No, the working days (9:00 AM–6:00 PM) do not overlap. When the day starts in Phuket at 9:00 AM, it is 8:00 PM (the previous day) in Great Falls; the day in Great Falls starts at 10:00 PM in Phuket time.
When is it still the previous day in Great Falls, MT?
Until 1:00 PM in Phuket it is still the previous day in Great Falls. The other way round, from 11:00 AM in Great Falls it is already the next day in Phuket.
Is the time difference between Phuket and Great Falls, MT, the same all year?
No. Only Great Falls switches to summer time, so the gap changes twice a year. From November 1, 2026, Great Falls will be 14 hours behind Phuket.
