Hangzhou to Seoul: time difference
Seoul is 1 h ahead of Hangzhou. 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.
Hangzhou 11:21 11:21 AM Seoul 12:21 12:21 PM You –:–
11:21 11:21 AM
China Standard Time · UTC+8
☀️ 05:58 · 🌙 17:36
12:21 12:21 PM
Korean Standard Time · UTC+9
☀️ 06:36 · 🌙 18:04
·
+1 h
Seoul is 1 h ahead of Hangzhou.
When you, Hangzhou 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
🇨🇳 Hangzhou
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 | 🇨🇳 Hangzhou | 🇰🇷 Seoul |
|---|---|---|
| Local time | 11:21 | 12:21 |
| Local date | Saturday, October 10, 2026 | Saturday, October 10, 2026 |
| Time zone | China Standard Time | Korean Standard Time |
| UTC offset | UTC+8 | UTC+9 |
| Offset from Hangzhou | — | +1 h |
| IANA zone | Asia/Shanghai | Asia/Seoul |
| Daylight saving | Not observed | Not observed |
| Sunrise | 05:58 | 06:36 |
| Sunset | 17:36 | 18:04 |
| Daylight | 11 h 38 min | 11 h 29 min |
| People on this clock | 10,360,000 | 9,509,458 |
Compare Hangzhou with another city
More comparisons with Hangzhou: the time zones next to it and the far side of the clock.
Big time differences
Hangzhou and Seoul: common questions
What is the time difference between Hangzhou and Seoul?
Seoul is 1 hour ahead: it uses UTC+9, while Hangzhou is on UTC+8.
What time is it in Seoul at the start of the working day in Hangzhou?
The working day in Hangzhou 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 Hangzhou?
When it is 6:00 PM in Hangzhou, it is 7:00 PM in Seoul.
When is a good time to call Seoul from Hangzhou?
Between 9:00 AM and 5:00 PM in Hangzhou – 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 Hangzhou 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 Hangzhou.
Does the time gap between Hangzhou and Seoul change during the year?
No, the clocks change neither in Hangzhou nor in Seoul, so the gap is 1 hour all year round.
