Chiang Mai to San Juan: time difference
San Juan 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 09:04 9:04 AM San Juan 22:04 10:04 PM You –:–
09:04 9:04 AM
Indochina Time · UTC+7
☀️ 06:17 · 🌙 18:07
22:04 10:04 PM
Atlantic Standard Time · UTC-4
☀️ 06:17 · 🌙 18:08
·
−11 h
San Juan is 11 h behind Chiang Mai.
When you, Chiang Mai and San Juan 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
🇵🇷 San Juan
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 | 🇵🇷 San Juan |
|---|---|---|
| Local time | 09:04 | 22:04 |
| Local date | Saturday, October 10, 2026 | Friday, October 9, 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/Puerto Rico |
| Daylight saving | Not observed | Not observed |
| Sunrise | 06:17 | 06:17 |
| Sunset | 18:07 | 18:08 |
| Daylight | 11 h 49 min | 11 h 50 min |
| People on this clock | 127,240 | 322,854 |
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 San Juan: common questions
How many hours behind Chiang Mai is San Juan?
The clocks in San Juan 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 San Juan?
At 9:00 AM in Chiang Mai, clocks in San Juan show 10:00 PM (the previous day).
What time is it in San Juan when it is 6:00 PM in Chiang Mai?
When it is 6:00 PM in Chiang Mai, it is 7:00 AM in San Juan.
Is there a time when both Chiang Mai and San Juan 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 San Juan; the day in San Juan starts at 8:00 PM in Chiang Mai time.
When does the date change in San Juan compared with Chiang Mai?
The new day starts in San Juan later: until 11:00 AM in Chiang Mai, it is still the previous day there. From 1:00 PM in San Juan, Chiang Mai is already on the next day.
Is the time difference between Chiang Mai and San Juan the same all year?
Yes. Neither Chiang Mai nor San Juan switches to summer time, so the gap is always 11 hours.
