Phuket to Castle Rock, CO: time difference
Castle Rock, 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 03:01 3:01 AM Castle Rock, CO 14:01 2:01 PM You –:–
03:01 3:01 AM
Indochina Time · UTC+7
☀️ 06:14 · 🌙 18:14
14:01 2:01 PM
Mountain Daylight Time · UTC-6
☀️ 07:05 · 🌙 18:29
·
−13 h
Castle Rock, CO is 13 h behind Phuket.
When you, Phuket and Castle Rock, 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
🇺🇸 Castle Rock, 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 | 🇺🇸 Castle Rock, CO |
|---|---|---|
| Local time | 03:01 | 14:01 |
| 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 | 07:05 |
| Sunset | 18:14 | 18:29 |
| Daylight | 11 h 59 min | 11 h 25 min |
| People on this clock | 79,308 | 73,158 |
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 Castle Rock, CO: common questions
How many hours behind Phuket is Castle Rock, CO?
The clocks in Castle Rock are 13 hours behind those in Phuket (UTC−6 and UTC+7).
If it is 9:00 AM in Phuket, what time is it in Castle Rock, CO?
At 9:00 AM in Phuket, clocks in Castle Rock show 8:00 PM (the previous day).
What time is it in Castle Rock, CO, at the end of the working day in Phuket?
The working day in Phuket ends at 6:00 PM; in Castle Rock it is 5:00 AM at that moment.
When is a good time to call Castle Rock, CO, from Phuket?
Working hours (9:00 AM–6:00 PM) in Phuket and in Castle Rock do not overlap. At 9:00 AM in Phuket it is 8:00 PM (the previous day) in Castle Rock; when the working day starts in Castle Rock, it is 10:00 PM in Phuket.
When is it still the previous day in Castle Rock, CO?
Until 1:00 PM in Phuket it is still the previous day in Castle Rock. The other way round, from 11:00 AM in Castle Rock it is already the next day in Phuket.
Does the time difference between Phuket and Castle Rock, CO, change?
Yes. The clocks change only in Castle Rock. From November 1, 2026, Castle Rock will be 14 hours behind Phuket.
