Chiang Mai to St Thomas: time difference
St Thomas is 11 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 00:39 12:39 AM St Thomas 13:39 1:39 PM You –:–
00:39 12:39 AM
Indochina Time · UTC+7
☀️ 06:19 · 🌙 18:01
13:39 1:39 PM
Atlantic Standard Time · UTC-4
☀️ 06:15 · 🌙 17:57
·
−11 h
St Thomas is 11 h behind Chiang Mai.
When you, Chiang Mai and St Thomas 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
🇻🇮 St Thomas
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
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇹🇭 Chiang Mai | 🇻🇮 St Thomas |
|---|---|---|
| Local time | 00:39 | 13:39 |
| Local date | Sunday, October 18, 2026 | Saturday, October 17, 2026 |
| Time zone | Indochina Time | Atlantic Standard Time |
| UTC offset | UTC+7 | UTC-4 |
| Offset from Chiang Mai | — | −11 h |
| IANA zone | Asia/Bangkok | America/St Thomas |
| Daylight saving | Not observed | Not observed |
| Sunrise | 06:19 | 06:15 |
| Sunset | 18:01 | 17:57 |
| Daylight | 11 h 41 min | 11 h 42 min |
| People on this clock | 127,240 | 20,000 |
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 St Thomas: common questions
How many hours behind Chiang Mai is St Thomas?
The clocks in St Thomas are 11 hours behind those in Chiang Mai (UTC−4 and UTC+7).
If it is 9:00 AM in Chiang Mai, what time is it in St Thomas?
At 9:00 AM in Chiang Mai, clocks in St Thomas show 10:00 PM (the previous day).
What time is it in St Thomas at the end of the working day in Chiang Mai?
The working day in Chiang Mai ends at 6:00 PM; in St Thomas it is 7:00 AM at that moment.
Is there a time when both Chiang Mai and St Thomas 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 10:00 PM (the previous day) in St Thomas; the day in St Thomas starts at 8:00 PM in Chiang Mai time.
When is it still the previous day in St Thomas?
Until 11:00 AM in Chiang Mai it is still the previous day in St Thomas. The other way round, from 1:00 PM in St Thomas it is already the next day in Chiang Mai.
Does the time gap between Chiang Mai and St Thomas change during the year?
No, the clocks change neither in Chiang Mai nor in St Thomas, so the gap is 11 hours all year round.
