Port Jefferson Station, NY to Chiang Mai: time difference
Chiang Mai is 11 h ahead of Port Jefferson Station, NY. 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.
Port Jefferson Station, NY 10:23 10:23 AM Chiang Mai 21:23 9:23 PM You –:–
10:23 10:23 AM
Eastern Daylight Time · UTC-4
☀️ 07:19 · 🌙 17:55
21:23 9:23 PM
Indochina Time · UTC+7
☀️ 06:23 · 🌙 17:54
·
+11 h
Chiang Mai is 11 h ahead of Port Jefferson Station, NY.
When you, Port Jefferson Station, NY 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
🇺🇸 Port Jefferson Station, NY
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
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Time zones side by side
| Detail | 🇺🇸 Port Jefferson Station, NY | 🇹🇭 Chiang Mai |
|---|---|---|
| Local time | 10:23 | 21:23 |
| Local date | Wednesday, October 28, 2026 | Wednesday, October 28, 2026 |
| Time zone | Eastern Daylight Time | Indochina Time |
| UTC offset | UTC-4 | UTC+7 |
| Offset from Port Jefferson Station, NY | — | +11 h |
| IANA zone | America/New York | Asia/Bangkok |
| Daylight saving | On summer time → UTC-5, Nov 1, 01:00 | Not observed |
| Sunrise | 07:19 | 06:23 |
| Sunset | 17:55 | 17:54 |
| Daylight | 10 h 36 min | 11 h 31 min |
| People on this clock | 8,000 | 127,240 |
Compare Port Jefferson Station, NY with another city
More comparisons with Port Jefferson Station, NY: the time zones next to it and the far side of the clock.
Nearby time zones
Port Jefferson Station, NY and Chiang Mai: common questions
How many hours ahead of Port Jefferson Station, NY, is Chiang Mai?
The clocks in Chiang Mai are 11 hours ahead of those in Port Jefferson Station (UTC+7 and UTC−4).
If it is 9:00 AM in Port Jefferson Station, NY, what time is it in Chiang Mai?
At 9:00 AM in Port Jefferson Station, clocks in Chiang Mai show 8:00 PM.
What time is it in Chiang Mai when it is 6:00 PM in Port Jefferson Station, NY?
When it is 6:00 PM in Port Jefferson Station, it is 5:00 AM (the next day) in Chiang Mai.
When do working hours in Port Jefferson Station, NY, and in Chiang Mai overlap?
They don't: there are no shared working hours. The start of the day in Port Jefferson Station (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 Port Jefferson Station.
From what time in Port Jefferson Station, NY, is it tomorrow in Chiang Mai?
Once it is 1:00 PM in Port Jefferson Station, the date in Chiang Mai has already changed. Until 11:00 AM in Chiang Mai, it is still the previous day in Port Jefferson Station.
Does the time difference between Port Jefferson Station, NY, and Chiang Mai change?
Yes. The clocks change only in Port Jefferson Station. From November 1, 2026, Chiang Mai will be 12 hours ahead of Port Jefferson Station.
