Portsmouth, NH to Chiang Mai: time difference
Chiang Mai is 11 h ahead of Portsmouth, NH. 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.
Portsmouth, NH 03:30 3:30 AM Chiang Mai 14:30 2:30 PM You –:–
03:30 3:30 AM
Eastern Daylight Time · UTC-4
☀️ 07:02 · 🌙 17:55
14:30 2:30 PM
Indochina Time · UTC+7
☀️ 06:20 · 🌙 18:00
·
+11 h
Chiang Mai is 11 h ahead of Portsmouth, NH.
When you, Portsmouth, NH 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
🇺🇸 Portsmouth, NH
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 | 🇺🇸 Portsmouth, NH | 🇹🇭 Chiang Mai |
|---|---|---|
| Local time | 03:30 | 14:30 |
| Local date | Monday, October 19, 2026 | Monday, October 19, 2026 |
| Time zone | Eastern Daylight Time | Indochina Time |
| UTC offset | UTC-4 | UTC+7 |
| Offset from Portsmouth, NH | — | +11 h |
| IANA zone | America/New York | Asia/Bangkok |
| Daylight saving | On summer time → UTC-5, Nov 1, 01:00 | Not observed |
| Sunrise | 07:02 | 06:20 |
| Sunset | 17:55 | 18:00 |
| Daylight | 10 h 54 min | 11 h 40 min |
| People on this clock | 95,535 | 127,240 |
Compare Portsmouth, NH with another city
More comparisons with Portsmouth, NH: the time zones next to it and the far side of the clock.
Nearby time zones
Portsmouth, NH and Chiang Mai: common questions
What is the time difference between Portsmouth, NH, and Chiang Mai?
Chiang Mai is 11 hours ahead: it uses UTC+7, while Portsmouth is on UTC−4.
What time is it in Chiang Mai when it is 9:00 AM in Portsmouth, NH?
When it is 9:00 AM in Portsmouth, it is 8:00 PM in Chiang Mai.
What time is it in Chiang Mai when it is 6:00 PM in Portsmouth, NH?
When it is 6:00 PM in Portsmouth, it is 5:00 AM (the next day) in Chiang Mai.
Is there a time when both Portsmouth, NH, and Chiang Mai are at work?
No, the working days (9:00 AM–6:00 PM) do not overlap. When the day starts in Portsmouth at 9:00 AM, it is 8:00 PM in Chiang Mai; the day in Chiang Mai starts at 10:00 PM (the previous day) in Portsmouth time.
From what time in Portsmouth, NH, is it tomorrow in Chiang Mai?
Once it is 1:00 PM in Portsmouth, the date in Chiang Mai has already changed. Until 11:00 AM in Chiang Mai, it is still the previous day in Portsmouth.
Does the time gap between Portsmouth, NH, and Chiang Mai change during the year?
Yes – daylight saving time is used in Portsmouth but not in Chiang Mai. From November 1, 2026, Chiang Mai will be 12 hours ahead of Portsmouth.
