Chiang Mai to Longmont, CO: time difference
Longmont, CO is 13 h behind Chiang Mai. 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.
Chiang Mai 00:41 12:41 AM Longmont, CO 11:41 11:41 AM You –:–
00:41 12:41 AM
Indochina Time · UTC+7
☀️ 06:20 · 🌙 17:59
11:41 11:41 AM
Mountain Daylight Time · UTC-6
☀️ 07:16 · 🌙 18:16
·
−13 h
Longmont, CO is 13 h behind Chiang Mai.
When you, Chiang Mai and Longmont, 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
🇹🇭 Chiang Mai
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
🇺🇸 Longmont, 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 | 🇹🇭 Chiang Mai | 🇺🇸 Longmont, CO |
|---|---|---|
| Local time | 00:41 | 11:41 |
| Local date | Tuesday, October 20, 2026 | Monday, October 19, 2026 |
| Time zone | Indochina Time | Mountain Daylight Time |
| UTC offset | UTC+7 | UTC-6 |
| Offset from Chiang Mai | — | −13 h |
| IANA zone | Asia/Bangkok | America/Denver |
| Daylight saving | Not observed | On summer time → UTC-7, Nov 1, 01:00 |
| Sunrise | 06:20 | 07:16 |
| Sunset | 17:59 | 18:16 |
| Daylight | 11 h 39 min | 11 h |
| People on this clock | 127,240 | 94,341 |
Compare Chiang Mai with another city
More comparisons with Chiang Mai: the time zones next to it and the far side of the clock.
Big time differences
Chiang Mai and Longmont, CO: common questions
How far behind Chiang Mai is Longmont, CO?
Longmont is 13 hours behind Chiang Mai: UTC−6 against UTC+7.
What time is it in Longmont, CO, at the start of the working day in Chiang Mai?
The working day in Chiang Mai starts at 9:00 AM; in Longmont it is 8:00 PM (the previous day) at that moment.
What time is it in Longmont, CO, at the end of the working day in Chiang Mai?
The working day in Chiang Mai ends at 6:00 PM; in Longmont it is 5:00 AM at that moment.
Is there a time when both Chiang Mai and Longmont, CO, are at work?
No, the working days (9:00 AM–6:00 PM) do not overlap. When the day starts in Chiang Mai at 9:00 AM, it is 8:00 PM (the previous day) in Longmont; the day in Longmont starts at 10:00 PM in Chiang Mai time.
When is it still the previous day in Longmont, CO?
Until 1:00 PM in Chiang Mai it is still the previous day in Longmont. The other way round, from 11:00 AM in Longmont it is already the next day in Chiang Mai.
Is the time difference between Chiang Mai and Longmont, CO, the same all year?
No. Only Longmont switches to summer time, so the gap changes twice a year. From November 1, 2026, Longmont will be 14 hours behind Chiang Mai.
