Butterworth to Seoul: time difference
Seoul is 1 h ahead of Butterworth. 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.
Butterworth 04:13 4:13 AM Seoul 05:13 5:13 AM You –:–
04:13 4:13 AM
Malaysia Time · UTC+8
☀️ 07:05 · 🌙 19:04
05:13 5:13 AM
Korean Standard Time · UTC+9
☀️ 06:43 · 🌙 17:53
·
+1 h
Seoul is 1 h ahead of Butterworth.
When you, Butterworth and Seoul are all at the desk
Pick the working hours below – the window every location shares appears once your time zone is known.
Working hours
🇲🇾 Butterworth
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
🇰🇷 Seoul
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 | 🇲🇾 Butterworth | 🇰🇷 Seoul |
|---|---|---|
| Local time | 04:13 | 05:13 |
| Local date | Sunday, October 18, 2026 | Sunday, October 18, 2026 |
| Time zone | Malaysia Time | Korean Standard Time |
| UTC offset | UTC+8 | UTC+9 |
| Offset from Butterworth | — | +1 h |
| IANA zone | Asia/Kuala Lumpur | Asia/Seoul |
| Daylight saving | Not observed | Not observed |
| Sunrise | 07:05 | 06:43 |
| Sunset | 19:04 | 17:53 |
| Daylight | 12 h | 11 h 10 min |
| People on this clock | 339,132 | 9,509,458 |
Compare Butterworth with another city
More comparisons with Butterworth: the time zones next to it and the far side of the clock.
Big time differences
Butterworth and Seoul: common questions
What is the time difference between Butterworth and Seoul?
Seoul is 1 hour ahead: it uses UTC+9, while Butterworth is on UTC+8.
What time is it in Seoul at the start of the working day in Butterworth?
The working day in Butterworth starts at 9:00 AM; in Seoul it is 10:00 AM at that moment.
What time is it in Seoul when it is 6:00 PM in Butterworth?
When it is 6:00 PM in Butterworth, it is 7:00 PM in Seoul.
When is a good time to call Seoul from Butterworth?
Between 9:00 AM and 5:00 PM in Butterworth – that is 10:00 AM to 6:00 PM in Seoul – both places are within working hours (9:00 AM–6:00 PM).
When is it already the next day in Seoul?
From 11:00 PM in Butterworth it is already the next day in Seoul. The other way round, until 1:00 AM in Seoul it is still the previous day in Butterworth.
Does the time gap between Butterworth and Seoul change during the year?
No, the clocks change neither in Butterworth nor in Seoul, so the gap is 1 hour all year round.
