Phuket to Thornton, CO: time difference
Thornton, CO 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 21:09 9:09 PM Thornton, CO 08:09 8:09 AM You –:–
21:09 9:09 PM
Indochina Time · UTC+7
☀️ 06:14 · 🌙 18:10
08:09 8:09 AM
Mountain Daylight Time · UTC-6
☀️ 07:15 · 🌙 18:16
·
−13 h
Thornton, CO is 13 h behind Phuket.
When you, Phuket and Thornton, CO 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
🇺🇸 Thornton, CO
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
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇹🇭 Phuket | 🇺🇸 Thornton, CO |
|---|---|---|
| Local time | 21:09 | 08:09 |
| Local date | Monday, October 19, 2026 | Monday, October 19, 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 | 07:15 |
| Sunset | 18:10 | 18:16 |
| Daylight | 11 h 56 min | 11 h 1 min |
| People on this clock | 79,308 | 139,478 |
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 Thornton, CO: common questions
How far behind Phuket is Thornton, CO?
Thornton is 13 hours behind Phuket: UTC−6 against UTC+7.
What time is it in Thornton, CO, when it is 9:00 AM in Phuket?
When it is 9:00 AM in Phuket, it is 8:00 PM (the previous day) in Thornton.
What time is it in Thornton, CO, when it is 6:00 PM in Phuket?
When it is 6:00 PM in Phuket, it is 5:00 AM in Thornton.
When is a good time to call Thornton, CO, from Phuket?
Working hours (9:00 AM–6:00 PM) in Phuket and in Thornton do not overlap. At 9:00 AM in Phuket it is 8:00 PM (the previous day) in Thornton; when the working day starts in Thornton, it is 10:00 PM in Phuket.
Until what time in Phuket is it still yesterday in Thornton, CO?
Before 1:00 PM in Phuket, the date in Thornton has not changed yet. From 11:00 AM in Thornton, it is already the next day in Phuket.
Does the time difference between Phuket and Thornton, CO, change?
Yes. The clocks change only in Thornton. From November 1, 2026, Thornton will be 14 hours behind Phuket.
