Singapore to Jeju: time difference
Jeju is 1 h ahead of Singapore. 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.
Singapore 16:04 4:04 PM Jeju 17:04 5:04 PM You –:–
16:04 4:04 PM
Singapore Standard Time · UTC+8
☀️ 06:50 · 🌙 18:55
17:04 5:04 PM
Korean Standard Time · UTC+9
☀️ 06:35 · 🌙 18:09
·
+1 h
Jeju is 1 h ahead of Singapore.
When you, Singapore and Jeju are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇸🇬 Singapore
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
🇰🇷 Jeju
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 0 12 AM
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇸🇬 Singapore | 🇰🇷 Jeju |
|---|---|---|
| Local time | 16:04 | 17:04 |
| Local date | Saturday, October 10, 2026 | Saturday, October 10, 2026 |
| Time zone | Singapore Standard Time | Korean Standard Time |
| UTC offset | UTC+8 | UTC+9 |
| Offset from Singapore | — | +1 h |
| IANA zone | Asia/Singapore | Asia/Seoul |
| Daylight saving | Not observed | Not observed |
| Sunrise | 06:50 | 06:35 |
| Sunset | 18:55 | 18:09 |
| Daylight | 12 h 6 min | 11 h 34 min |
| People on this clock | 5,535,002 | 469,279 |
Compare Singapore with another city
More comparisons with Singapore: the time zones next to it and the far side of the clock.
Big time differences
Singapore and Jeju: common questions
How far ahead of Singapore is Jeju?
Jeju is 1 hour ahead of Singapore: UTC+9 against UTC+8.
What time is it in Jeju when it is 9:00 AM in Singapore?
When it is 9:00 AM in Singapore, it is 10:00 AM in Jeju.
What time is it in Jeju at the end of the working day in Singapore?
The working day in Singapore ends at 6:00 PM; in Jeju it is 7:00 PM at that moment.
When is a good time to call Jeju from Singapore?
Between 9:00 AM and 5:00 PM in Singapore – that is 10:00 AM to 6:00 PM in Jeju – both places are within working hours (9:00 AM–6:00 PM).
When is it already the next day in Jeju?
From 11:00 PM in Singapore it is already the next day in Jeju. The other way round, until 1:00 AM in Jeju it is still the previous day in Singapore.
Does the time difference between Singapore and Jeju change?
No. Neither place uses daylight saving time, so the difference stays 1 hour all year.
