Phuket to Waltham, MA: time difference
Waltham, MA is 11 h behind Phuket. 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.
Phuket 21:57 9:57 PM Waltham, MA 10:57 10:57 AM You –:–
21:57 9:57 PM
Indochina Time · UTC+7
☀️ 06:14 · 🌙 18:10
10:57 10:57 AM
Eastern Daylight Time · UTC-4
☀️ 07:02 · 🌙 18:00
·
−11 h
Waltham, MA is 11 h behind Phuket.
When you, Phuket and Waltham, MA are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇹🇭 Phuket
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
🇺🇸 Waltham, MA
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
- Right now
Time zones side by side
| Detail | 🇹🇭 Phuket | 🇺🇸 Waltham, MA |
|---|---|---|
| Local time | 21:57 | 10:57 |
| Local date | Sunday, October 18, 2026 | Sunday, October 18, 2026 |
| Time zone | Indochina Time | Eastern Daylight Time |
| UTC offset | UTC+7 | UTC-4 |
| Offset from Phuket | — | −11 h |
| IANA zone | Asia/Bangkok | America/New York |
| Daylight saving | Not observed | On summer time → UTC-5, Nov 1, 01:00 |
| Sunrise | 06:14 | 07:02 |
| Sunset | 18:10 | 18:00 |
| Daylight | 11 h 56 min | 10 h 58 min |
| People on this clock | 79,308 | 60,636 |
Compare Phuket with another city
More comparisons with Phuket: the time zones next to it and the far side of the clock.
Big time differences
Phuket and Waltham, MA: common questions
What is the time difference between Phuket and Waltham, MA?
Waltham is 11 hours behind: it uses UTC−4, while Phuket is on UTC+7.
What time is it in Waltham, MA, at the start of the working day in Phuket?
The working day in Phuket starts at 9:00 AM; in Waltham it is 10:00 PM (the previous day) at that moment.
If it is 6:00 PM in Phuket, what time is it in Waltham, MA?
At 6:00 PM in Phuket, clocks in Waltham show 7:00 AM.
Is there a time when both Phuket and Waltham, MA, are at work?
No, the working days (9:00 AM–6:00 PM) do not overlap. When the day starts in Phuket at 9:00 AM, it is 10:00 PM (the previous day) in Waltham; the day in Waltham starts at 8:00 PM in Phuket time.
When is it still the previous day in Waltham, MA?
Until 11:00 AM in Phuket it is still the previous day in Waltham. The other way round, from 1:00 PM in Waltham it is already the next day in Phuket.
Does the time difference between Phuket and Waltham, MA, change?
Yes. The clocks change only in Waltham. From November 1, 2026, Waltham will be 12 hours behind Phuket.
