Ulsan to Singapore: time difference
Singapore is 1 h behind Ulsan. 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.
Ulsan 03:17 3:17 AM Singapore 02:17 2:17 AM You –:–
03:17 3:17 AM
Korean Standard Time · UTC+9
☀️ 06:32 · 🌙 17:46
02:17 2:17 AM
Singapore Standard Time · UTC+8
☀️ 06:48 · 🌙 18:53
·
−1 h
Singapore is 1 h behind Ulsan.
When you, Ulsan and Singapore are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇰🇷 Ulsan
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
🇸🇬 Singapore
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 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
📍 Your time
- Asleep
- Early
- Working hours
- Evening
- Both working
- Right now
Time zones side by side
| Detail | 🇰🇷 Ulsan | 🇸🇬 Singapore |
|---|---|---|
| Local time | 03:17 | 02:17 |
| Local date | Sunday, October 18, 2026 | Sunday, October 18, 2026 |
| Time zone | Korean Standard Time | Singapore Standard Time |
| UTC offset | UTC+9 | UTC+8 |
| Offset from Ulsan | — | −1 h |
| IANA zone | Asia/Seoul | Asia/Singapore |
| Daylight saving | Not observed | Not observed |
| Sunrise | 06:32 | 06:48 |
| Sunset | 17:46 | 18:53 |
| Daylight | 11 h 14 min | 12 h 5 min |
| People on this clock | 1,129,827 | 5,535,002 |
Compare Ulsan with another city
More comparisons with Ulsan: the time zones next to it and the far side of the clock.
Nearby time zones
Big time differences
Ulsan and Singapore: common questions
How many hours behind Ulsan is Singapore?
The clocks in Singapore are 1 hour behind those in Ulsan (UTC+8 and UTC+9).
What time is it in Singapore at the start of the working day in Ulsan?
The working day in Ulsan starts at 9:00 AM; in Singapore it is 8:00 AM at that moment.
What time is it in Singapore at the end of the working day in Ulsan?
The working day in Ulsan ends at 6:00 PM; in Singapore it is 5:00 PM at that moment.
When is a good time to call Singapore from Ulsan?
Between 10:00 AM and 6:00 PM in Ulsan – that is 9:00 AM to 5:00 PM in Singapore – both places are within working hours (9:00 AM–6:00 PM).
When is it still the previous day in Singapore?
Until 1:00 AM in Ulsan it is still the previous day in Singapore. The other way round, from 11:00 PM in Singapore it is already the next day in Ulsan.
Does the time gap between Ulsan and Singapore change during the year?
No, the clocks change neither in Ulsan nor in Singapore, so the gap is 1 hour all year round.
