Greenwich, CT to Chiang Mai: time difference
Chiang Mai is 11 h ahead of Greenwich, CT. 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.
Greenwich, CT 21:02 9:02 PM Chiang Mai 08:02 8:02 AM You –:–
21:02 9:02 PM
Eastern Daylight Time · UTC-4
☀️ 07:10 · 🌙 18:11
08:02 8:02 AM
Indochina Time · UTC+7
☀️ 06:20 · 🌙 18:00
·
+11 h
Chiang Mai is 11 h ahead of Greenwich, CT.
When you, Greenwich, CT 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
🇺🇸 Greenwich, CT
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 | 🇺🇸 Greenwich, CT | 🇹🇭 Chiang Mai |
|---|---|---|
| Local time | 21:02 | 08:02 |
| Local date | Sunday, October 18, 2026 | Monday, October 19, 2026 |
| Time zone | Eastern Daylight Time | Indochina Time |
| UTC offset | UTC-4 | UTC+7 |
| Offset from Greenwich, CT | — | +11 h |
| IANA zone | America/New York | Asia/Bangkok |
| Daylight saving | On summer time → UTC-5, Nov 1, 01:00 | Not observed |
| Sunrise | 07:10 | 06:20 |
| Sunset | 18:11 | 18:00 |
| Daylight | 11 h 1 min | 11 h 40 min |
| People on this clock | 62,077 | 127,240 |
Compare Greenwich, CT with another city
More comparisons with Greenwich, CT: the time zones next to it and the far side of the clock.
Nearby time zones
Greenwich, CT and Chiang Mai: common questions
How many hours ahead of Greenwich, CT, is Chiang Mai?
The clocks in Chiang Mai are 11 hours ahead of those in Greenwich (UTC+7 and UTC−4).
If it is 9:00 AM in Greenwich, CT, what time is it in Chiang Mai?
At 9:00 AM in Greenwich, clocks in Chiang Mai show 8:00 PM.
What time is it in Chiang Mai at the end of the working day in Greenwich, CT?
The working day in Greenwich 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 Greenwich, CT?
Working hours (9:00 AM–6:00 PM) in Greenwich and in Chiang Mai do not overlap. At 9:00 AM in Greenwich 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 Greenwich.
When does the date change in Chiang Mai compared with Greenwich, CT?
The new day starts in Chiang Mai earlier: at 1:00 PM in Greenwich it is already midnight there. Until 11:00 AM in Chiang Mai, Greenwich is still on the previous day.
Is the time difference between Greenwich, CT, and Chiang Mai the same all year?
No. Only Greenwich switches to summer time, so the gap changes twice a year. From November 1, 2026, Chiang Mai will be 12 hours ahead of Greenwich.
