San Juan to Chiang Mai: time difference
Chiang Mai is 11 h ahead of San Juan. 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.
San Juan 21:10 9:10 PM Chiang Mai 08:10 8:10 AM You –:–
21:10 9:10 PM
Atlantic Standard Time · UTC-4
☀️ 06:17 · 🌙 18:08
08:10 8:10 AM
Indochina Time · UTC+7
☀️ 06:17 · 🌙 18:07
·
+11 h
Chiang Mai is 11 h ahead of San Juan.
When you, San Juan 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
🇵🇷 San Juan
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
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 | 🇵🇷 San Juan | 🇹🇭 Chiang Mai |
|---|---|---|
| Local time | 21:10 | 08:10 |
| Local date | Friday, October 9, 2026 | Saturday, October 10, 2026 |
| Time zone | Atlantic Standard Time | Indochina Time |
| UTC offset | UTC-4 | UTC+7 |
| Offset from San Juan | — | +11 h |
| IANA zone | America/Puerto Rico | Asia/Bangkok |
| Daylight saving | Not observed | Not observed |
| Sunrise | 06:17 | 06:17 |
| Sunset | 18:08 | 18:07 |
| Daylight | 11 h 50 min | 11 h 49 min |
| People on this clock | 322,854 | 127,240 |
Compare San Juan with another city
More comparisons with San Juan: the time zones next to it and the far side of the clock.
Nearby time zones
San Juan and Chiang Mai: common questions
How far ahead of San Juan is Chiang Mai?
Chiang Mai is 11 hours ahead of San Juan: UTC+7 against UTC−4.
If it is 9:00 AM in San Juan, what time is it in Chiang Mai?
At 9:00 AM in San Juan, clocks in Chiang Mai show 8:00 PM.
What time is it in Chiang Mai at the end of the working day in San Juan?
The working day in San Juan ends at 6:00 PM; in Chiang Mai it is 5:00 AM (the next day) at that moment.
When do working hours in San Juan and in Chiang Mai overlap?
They don't: there are no shared working hours. The start of the day in San Juan (9:00 AM) is 8:00 PM in Chiang Mai, and the start of the day in Chiang Mai is 10:00 PM (the previous day) in San Juan.
When does the date change in Chiang Mai compared with San Juan?
The new day starts in Chiang Mai earlier: at 1:00 PM in San Juan it is already midnight there. Until 11:00 AM in Chiang Mai, San Juan is still on the previous day.
Does the time gap between San Juan and Chiang Mai change during the year?
No, the clocks change neither in San Juan nor in Chiang Mai, so the gap is 11 hours all year round.
