St. Louis, MO to Chiang Mai: time difference
Chiang Mai is 12 h ahead of St. Louis, MO. 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.
St. Louis, MO 18:29 6:29 PM Chiang Mai 06:29 6:29 AM You –:–
18:29 6:29 PM
Central Daylight Time · UTC-5
☀️ 07:17 · 🌙 18:16
06:29 6:29 AM
Indochina Time · UTC+7
☀️ 06:21 · 🌙 17:58
·
+12 h
Chiang Mai is 12 h ahead of St. Louis, MO.
When you, St. Louis, MO 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
🇺🇸 St. Louis, MO
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
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 11 11 AM
📍 Your time
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Time zones side by side
| Detail | 🇺🇸 St. Louis, MO | 🇹🇭 Chiang Mai |
|---|---|---|
| Local time | 18:29 | 06:29 |
| Local date | Wednesday, October 21, 2026 | Thursday, October 22, 2026 |
| Time zone | Central Daylight Time | Indochina Time |
| UTC offset | UTC-5 | UTC+7 |
| Offset from St. Louis, MO | — | +12 h |
| IANA zone | America/Chicago | Asia/Bangkok |
| Daylight saving | On summer time → UTC-6, Nov 1, 01:00 | Not observed |
| Sunrise | 07:17 | 06:21 |
| Sunset | 18:16 | 17:58 |
| Daylight | 10 h 59 min | 11 h 37 min |
| People on this clock | 301,578 | 127,240 |
Compare St. Louis, MO with another city
More comparisons with St. Louis, MO: the time zones next to it and the far side of the clock.
Nearby time zones
St. Louis, MO and Chiang Mai: common questions
How far ahead of St. Louis, MO, is Chiang Mai?
Chiang Mai is 12 hours ahead of St. Louis: UTC+7 against UTC−5.
If it is 9:00 AM in St. Louis, MO, what time is it in Chiang Mai?
At 9:00 AM in St. Louis, clocks in Chiang Mai show 9:00 PM.
What time is it in Chiang Mai at the end of the working day in St. Louis, MO?
The working day in St. Louis ends at 6:00 PM; in Chiang Mai it is 6:00 AM (the next day) at that moment.
When do working hours in St. Louis, MO, and in Chiang Mai overlap?
They don't: there are no shared working hours. The start of the day in St. Louis (9:00 AM) is 9:00 PM in Chiang Mai, and the start of the day in Chiang Mai is 9:00 PM (the previous day) in St. Louis.
When is it already the next day in Chiang Mai?
From 12:00 PM in St. Louis, MO, it is already the next day in Chiang Mai. The other way round, until 12:00 PM in Chiang Mai it is still the previous day in St. Louis.
Does the time difference between St. Louis, MO, and Chiang Mai change?
Yes. The clocks change only in St. Louis. From November 1, 2026, Chiang Mai will be 13 hours ahead of St. Louis.
