Phuket to Sumter, SC: time difference
Sumter, SC 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 19:40 7:40 PM Sumter, SC 08:40 8:40 AM You –:–
19:40 7:40 PM
Indochina Time · UTC+7
☀️ 06:14 · 🌙 18:13
08:40 8:40 AM
Eastern Daylight Time · UTC-4
☀️ 07:25 · 🌙 18:52
·
−11 h
Sumter, SC is 11 h behind Phuket.
When you, Phuket and Sumter, SC 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
🇺🇸 Sumter, SC
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 | 🇺🇸 Sumter, SC |
|---|---|---|
| Local time | 19:40 | 08:40 |
| Local date | Monday, October 12, 2026 | Monday, October 12, 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 | 07:25 |
| Sunset | 18:13 | 18:52 |
| Daylight | 11 h 59 min | 11 h 28 min |
| People on this clock | 79,308 | 39,159 |
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 Sumter, SC: common questions
How many hours behind Phuket is Sumter, SC?
The clocks in Sumter are 11 hours behind those in Phuket (UTC−4 and UTC+7).
What time is it in Sumter, SC, at the start of the working day in Phuket?
The working day in Phuket starts at 9:00 AM; in Sumter it is 10:00 PM (the previous day) at that moment.
What time is it in Sumter, SC, when it is 6:00 PM in Phuket?
When it is 6:00 PM in Phuket, it is 7:00 AM in Sumter.
Is there a time when both Phuket and Sumter, SC, 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 Sumter; the day in Sumter starts at 8:00 PM in Phuket time.
Until what time in Phuket is it still yesterday in Sumter, SC?
Before 11:00 AM in Phuket, the date in Sumter has not changed yet. From 1:00 PM in Sumter, it is already the next day in Phuket.
Does the time gap between Phuket and Sumter, SC, change during the year?
Yes – daylight saving time is used in Sumter but not in Phuket. From November 1, 2026, Sumter will be 12 hours behind Phuket.
