Phuket to St Thomas: time difference
St Thomas 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 03:46 3:46 AM St Thomas 16:46 4:46 PM You –:–
03:46 3:46 AM
Indochina Time · UTC+7
☀️ 06:14 · 🌙 18:10
16:46 4:46 PM
Atlantic Standard Time · UTC-4
☀️ 06:15 · 🌙 17:57
·
−11 h
St Thomas is 11 h behind Phuket.
When you, Phuket and St Thomas 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
🇻🇮 St Thomas
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 | 🇻🇮 St Thomas |
|---|---|---|
| Local time | 03:46 | 16:46 |
| Local date | Sunday, October 18, 2026 | Saturday, October 17, 2026 |
| Time zone | Indochina Time | Atlantic Standard Time |
| UTC offset | UTC+7 | UTC-4 |
| Offset from Phuket | — | −11 h |
| IANA zone | Asia/Bangkok | America/St Thomas |
| Daylight saving | Not observed | Not observed |
| Sunrise | 06:14 | 06:15 |
| Sunset | 18:10 | 17:57 |
| Daylight | 11 h 56 min | 11 h 42 min |
| People on this clock | 79,308 | 20,000 |
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 St Thomas: common questions
What is the time difference between Phuket and St Thomas?
St Thomas is 11 hours behind: it uses UTC−4, while Phuket is on UTC+7.
What time is it in St Thomas when it is 9:00 AM in Phuket?
When it is 9:00 AM in Phuket, it is 10:00 PM (the previous day) in St Thomas.
What time is it in St Thomas at the end of the working day in Phuket?
The working day in Phuket ends at 6:00 PM; in St Thomas it is 7:00 AM at that moment.
When is a good time to call St Thomas from Phuket?
Working hours (9:00 AM–6:00 PM) in Phuket and in St Thomas do not overlap. At 9:00 AM in Phuket it is 10:00 PM (the previous day) in St Thomas; when the working day starts in St Thomas, it is 8:00 PM in Phuket.
When does the date change in St Thomas compared with Phuket?
The new day starts in St Thomas later: until 11:00 AM in Phuket, it is still the previous day there. From 1:00 PM in St Thomas, Phuket is already on the next day.
Is the time difference between Phuket and St Thomas the same all year?
Yes. Neither Phuket nor St Thomas switches to summer time, so the gap is always 11 hours.
