Chiang Mai to Philadelphia, PA: time difference
Philadelphia, PA 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 16:57 4:57 PM Philadelphia, PA 05:57 5:57 AM You –:–
16:57 4:57 PM
Indochina Time · UTC+7
☀️ 06:17 · 🌙 18:07
05:57 5:57 AM
Eastern Daylight Time · UTC-4
☀️ 07:06 · 🌙 18:30
·
−11 h
Philadelphia, PA is 11 h behind Chiang Mai.
When you, Chiang Mai and Philadelphia, PA 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
🇺🇸 Philadelphia, PA
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
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Time zones side by side
| Detail | 🇹🇭 Chiang Mai | 🇺🇸 Philadelphia, PA |
|---|---|---|
| Local time | 16:57 | 05:57 |
| Local date | Saturday, October 10, 2026 | Saturday, October 10, 2026 |
| Time zone | Indochina Time | Eastern Daylight Time |
| UTC offset | UTC+7 | UTC-4 |
| Offset from Chiang Mai | — | −11 h |
| IANA zone | Asia/Bangkok | America/New York |
| Daylight saving | Not observed | On summer time → UTC-5, Nov 1, 01:00 |
| Sunrise | 06:17 | 07:06 |
| Sunset | 18:07 | 18:30 |
| Daylight | 11 h 49 min | 11 h 24 min |
| People on this clock | 127,240 | 1,573,916 |
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 Philadelphia, PA: common questions
What is the time difference between Chiang Mai and Philadelphia, PA?
Philadelphia is 11 hours behind: it uses UTC−4, while Chiang Mai is on UTC+7.
What time is it in Philadelphia, PA, at the start of the working day in Chiang Mai?
The working day in Chiang Mai starts at 9:00 AM; in Philadelphia it is 10:00 PM (the previous day) at that moment.
If it is 6:00 PM in Chiang Mai, what time is it in Philadelphia, PA?
At 6:00 PM in Chiang Mai, clocks in Philadelphia show 7:00 AM.
When do working hours in Chiang Mai and in Philadelphia, PA, overlap?
They don't: there are no shared working hours. The start of the day in Chiang Mai (9:00 AM) is 10:00 PM (the previous day) in Philadelphia, and the start of the day in Philadelphia is 8:00 PM in Chiang Mai.
Until what time in Chiang Mai is it still yesterday in Philadelphia, PA?
Before 11:00 AM in Chiang Mai, the date in Philadelphia has not changed yet. From 1:00 PM in Philadelphia, it is already the next day in Chiang Mai.
Is the time difference between Chiang Mai and Philadelphia, PA, the same all year?
No. Only Philadelphia switches to summer time, so the gap changes twice a year. From November 1, 2026, Philadelphia will be 12 hours behind Chiang Mai.
