Castle Rock, CO to Chiang Mai: time difference
Chiang Mai is 13 h ahead of Castle Rock, CO. 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.
Castle Rock, CO 12:18 12:18 PM Chiang Mai 01:18 1:18 AM You –:–
12:18 12:18 PM
Mountain Daylight Time · UTC-6
☀️ 07:05 · 🌙 18:29
01:18 1:18 AM
Indochina Time · UTC+7
☀️ 06:17 · 🌙 18:06
·
+13 h
Chiang Mai is 13 h ahead of Castle Rock, CO.
When you, Castle Rock, CO 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
🇺🇸 Castle Rock, CO
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
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Time zones side by side
| Detail | 🇺🇸 Castle Rock, CO | 🇹🇭 Chiang Mai |
|---|---|---|
| Local time | 12:18 | 01:18 |
| 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 Castle Rock, CO | — | +13 h |
| IANA zone | America/Denver | Asia/Bangkok |
| Daylight saving | On summer time → UTC-7, Nov 1, 01:00 | Not observed |
| Sunrise | 07:05 | 06:17 |
| Sunset | 18:29 | 18:06 |
| Daylight | 11 h 25 min | 11 h 48 min |
| People on this clock | 73,158 | 127,240 |
Compare Castle Rock, CO with another city
More comparisons with Castle Rock, CO: the time zones next to it and the far side of the clock.
Nearby time zones
Castle Rock, CO and Chiang Mai: common questions
How many hours ahead of Castle Rock, CO, is Chiang Mai?
The clocks in Chiang Mai are 13 hours ahead of those in Castle Rock (UTC+7 and UTC−6).
If it is 9:00 AM in Castle Rock, CO, what time is it in Chiang Mai?
At 9:00 AM in Castle Rock, clocks in Chiang Mai show 10:00 PM.
What time is it in Chiang Mai when it is 6:00 PM in Castle Rock, CO?
When it is 6:00 PM in Castle Rock, it is 7:00 AM (the next day) in Chiang Mai.
When is a good time to call Chiang Mai from Castle Rock, CO?
Working hours (9:00 AM–6:00 PM) in Castle Rock and in Chiang Mai do not overlap. At 9:00 AM in Castle Rock it is 10:00 PM in Chiang Mai; when the working day starts in Chiang Mai, it is 8:00 PM (the previous day) in Castle Rock.
When is it already the next day in Chiang Mai?
From 11:00 AM in Castle Rock, CO, it is already the next day in Chiang Mai. The other way round, until 1:00 PM in Chiang Mai it is still the previous day in Castle Rock.
Is the time difference between Castle Rock, CO, and Chiang Mai the same all year?
No. Only Castle Rock switches to summer time, so the gap changes twice a year. From November 1, 2026, Chiang Mai will be 14 hours ahead of Castle Rock.
