Reading, PA to Chiang Mai: time difference
Chiang Mai is 11 h ahead of Reading, PA. 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.
Reading, PA 21:09 9:09 PM Chiang Mai 08:09 8:09 AM You –:–
21:09 9:09 PM
Eastern Daylight Time · UTC-4
☀️ 07:11 · 🌙 18:31
08:09 8:09 AM
Indochina Time · UTC+7
☀️ 06:18 · 🌙 18:05
·
+11 h
Chiang Mai is 11 h ahead of Reading, PA.
When you, Reading, PA 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
🇺🇸 Reading, PA
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 | 🇺🇸 Reading, PA | 🇹🇭 Chiang Mai |
|---|---|---|
| Local time | 21:09 | 08:09 |
| Local date | Sunday, October 11, 2026 | Monday, October 12, 2026 |
| Time zone | Eastern Daylight Time | Indochina Time |
| UTC offset | UTC-4 | UTC+7 |
| Offset from Reading, PA | — | +11 h |
| IANA zone | America/New York | Asia/Bangkok |
| Daylight saving | On summer time → UTC-5, Nov 1, 01:00 | Not observed |
| Sunrise | 07:11 | 06:18 |
| Sunset | 18:31 | 18:05 |
| Daylight | 11 h 21 min | 11 h 47 min |
| People on this clock | 88,082 | 127,240 |
Compare Reading, PA with another city
More comparisons with Reading, PA: the time zones next to it and the far side of the clock.
Nearby time zones
Reading, PA and Chiang Mai: common questions
How many hours ahead of Reading, PA, is Chiang Mai?
The clocks in Chiang Mai are 11 hours ahead of those in Reading (UTC+7 and UTC−4).
What time is it in Chiang Mai when it is 9:00 AM in Reading, PA?
When it is 9:00 AM in Reading, it is 8:00 PM in Chiang Mai.
What time is it in Chiang Mai at the end of the working day in Reading, PA?
The working day in Reading ends at 6:00 PM; in Chiang Mai it is 5:00 AM (the next day) at that moment.
When is a good time to call Chiang Mai from Reading, PA?
Working hours (9:00 AM–6:00 PM) in Reading and in Chiang Mai do not overlap. At 9:00 AM in Reading it is 8:00 PM in Chiang Mai; when the working day starts in Chiang Mai, it is 10:00 PM (the previous day) in Reading.
When is it already the next day in Chiang Mai?
From 1:00 PM in Reading, PA, it is already the next day in Chiang Mai. The other way round, until 11:00 AM in Chiang Mai it is still the previous day in Reading.
Does the time gap between Reading, PA, and Chiang Mai change during the year?
Yes – daylight saving time is used in Reading but not in Chiang Mai. From November 1, 2026, Chiang Mai will be 12 hours ahead of Reading.
