Time Difference

Seoul vs Hangzhou Time Difference

Compare the current local time in Seoul, South Korea and Hangzhou, China.

Live local timeDST awareUTC offsets

From

Seoul

South Korea

7:39 AM

Mon, Aug 17

UTC+9Asia/Seoul

Difference

1 hour

Swap

Hangzhou

China

6:39 AM

Mon, Aug 17

UTC+8Asia/Shanghai

Current difference

Hangzhou is currently 60 minutes behind Seoul.

This difference is calculated using the current UTC offsets for both locations and automatically reflects daylight-saving changes.

24-hour comparison

Compare Seoul and Hangzhou hour by hour

See how a full local day in Seoul, South Korea maps to Hangzhou, China. TimeInOne automatically accounts for timezone offsets, date changes and daylight-saving transitions.

24-hour day

Best working-hours overlap

10:00 AM – 6:00 PM in Seoul

corresponds to 9:00 AM – 5:00 PM in Hangzhou.

8 hours overlap

Seoul

Asia/Seoul

Hangzhou

Asia/Shanghai

Availability

12:00 AM

Mon, Aug 17

11:00 PM

Previous day

Sun, Aug 16

Night

1:00 AM

Mon, Aug 17

12:00 AM

Mon, Aug 17

Night

2:00 AM

Mon, Aug 17

1:00 AM

Mon, Aug 17

Night

3:00 AM

Mon, Aug 17

2:00 AM

Mon, Aug 17

Night

4:00 AM

Mon, Aug 17

3:00 AM

Mon, Aug 17

Night

5:00 AM

Mon, Aug 17

4:00 AM

Mon, Aug 17

Night

6:00 AM

Mon, Aug 17

5:00 AM

Mon, Aug 17

Night

7:00 AM

Mon, Aug 17

6:00 AM

Mon, Aug 17

Night

8:00 AM

Mon, Aug 17

7:00 AM

Mon, Aug 17

Possible

9:00 AM

Mon, Aug 17

8:00 AM

Mon, Aug 17

Possible

10:00 AM

Mon, Aug 17

9:00 AM

Mon, Aug 17

Good overlap

11:00 AM

Mon, Aug 17

10:00 AM

Mon, Aug 17

Good overlap

12:00 PM

Mon, Aug 17

11:00 AM

Mon, Aug 17

Good overlap

1:00 PM

Mon, Aug 17

12:00 PM

Mon, Aug 17

Good overlap

2:00 PM

Mon, Aug 17

1:00 PM

Mon, Aug 17

Good overlap

3:00 PM

Mon, Aug 17

2:00 PM

Mon, Aug 17

Good overlap

4:00 PM

Mon, Aug 17

3:00 PM

Mon, Aug 17

Good overlap

5:00 PM

Mon, Aug 17

4:00 PM

Mon, Aug 17

Good overlap

6:00 PM

Mon, Aug 17

5:00 PM

Mon, Aug 17

Possible

7:00 PM

Mon, Aug 17

6:00 PM

Mon, Aug 17

Possible

8:00 PM

Mon, Aug 17

7:00 PM

Mon, Aug 17

Possible

9:00 PM

Mon, Aug 17

8:00 PM

Mon, Aug 17

Night

10:00 PM

Mon, Aug 17

9:00 PM

Mon, Aug 17

Night

11:00 PM

Mon, Aug 17

10:00 PM

Mon, Aug 17

Night

Working-hour labels use a general 9:00 AM–6:00 PM schedule. Individual schedules may differ.

On daylight-saving transition dates, a local day can contain 23 or 25 real hours instead of 24.

Call planning

Best time to call Hangzhou from Seoul

Compare typical business hours in Seoul, South Korea and Hangzhou, China to find a practical time for calls, meetings or international coordination.

Seoul

10:39 AM – 6:39 PM

South Korea

Best overlap

Hangzhou

9:39 AM – 5:39 PM

China

The best time to call Hangzhou from Seoul is between 10:39 AM and 6:39 PM in Seoul. This corresponds to 9:39 AM – 5:39 PM in Hangzhou.

Other reasonable windows

Seoul

8:39 AM – 10:39 AM

Hangzhou

7:39 AM – 9:39 AM

Seoul

6:39 PM – 9:39 PM

Hangzhou

5:39 PM – 8:39 PM

Recommendations use typical 9:00 AM–6:00 PM business hours and a broader 7:00 AM–9:00 PM acceptable calling window. Individual schedules may differ.

Time difference explained

Seoul and Hangzhou time difference explained

Current local-time relationship

Hangzhou is currently 1 hour behind Seoul.

Seoul uses Asia/Seoul and currently has an offset of UTC+9. Hangzhou uses Asia/Shanghai and currently has an offset of UTC+8.

Working-hours overlap

For a typical 9:00 AM–6:00 PM workday, the cities overlap from 10:00 AM to 6:00 PM in Seoul, corresponding to 9:00 AM–5:00 PM in Hangzhou.

Because UTC offsets can change during the year, always check the selected date when planning an important international call or meeting.

Convert a specific time

Need more than the current difference?

Convert a specific date and local time between Seoul and Hangzhou.

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Local clocks

Explore each city

Current time in Seoul Current time in Hangzhou

FAQ

Seoul to Hangzhou time difference FAQ

Common questions about the current time difference, UTC offsets, daylight-saving changes and practical calling hours between Seoul and Hangzhou.

What is the time difference between Seoul and Hangzhou?

The current time difference between Seoul and Hangzhou is 1 hour. Hangzhou is currently 1 hour behind Seoul.

Is Hangzhou ahead of or behind Seoul?

Hangzhou is currently 1 hour behind Seoul.

What time is it in Hangzhou when it is 9:00 AM in Seoul?

Using the current UTC offsets, 9:00 AM in Seoul corresponds to 8:00 AM in Hangzhou. The exact difference can change when daylight-saving rules change.

What is the best time to call Hangzhou from Seoul?

Typical 9:00 AM–6:00 PM business hours overlap between 10:00 AM and 6:00 PM in Seoul. This corresponds to 9:00 AM–5:00 PM in Hangzhou.

Can the time difference between Seoul and Hangzhou change?

Yes. The time difference can change if Seoul or Hangzhou changes its UTC offset because of daylight-saving or other local time-zone rules. TimeInOne uses the IANA zones Asia/Seoul and Asia/Shanghai for date-aware calculations.