Time Difference

Busan vs Osaka Time Difference

Compare the current local time in Busan, South Korea and Osaka, Japan.

Live local timeDST awareUTC offsets

From

Busan

South Korea

8:30 AM

Mon, Aug 17

UTC+9Asia/Seoul

Difference

Same time

Swap

Osaka

Japan

8:30 AM

Mon, Aug 17

UTC+9Asia/Tokyo

Current difference

Busan and Osaka currently have the same local time.

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

24-hour comparison

Compare Busan and Osaka hour by hour

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

24-hour day

Best working-hours overlap

9:00 AM – 6:00 PM in Busan

corresponds to 9:00 AM – 6:00 PM in Osaka.

9 hours overlap

Busan

Asia/Seoul

Osaka

Asia/Tokyo

Availability

12:00 AM

Mon, Aug 17

12:00 AM

Mon, Aug 17

Night

1:00 AM

Mon, Aug 17

1:00 AM

Mon, Aug 17

Night

2:00 AM

Mon, Aug 17

2:00 AM

Mon, Aug 17

Night

3:00 AM

Mon, Aug 17

3:00 AM

Mon, Aug 17

Night

4:00 AM

Mon, Aug 17

4:00 AM

Mon, Aug 17

Night

5:00 AM

Mon, Aug 17

5:00 AM

Mon, Aug 17

Night

6:00 AM

Mon, Aug 17

6:00 AM

Mon, Aug 17

Night

7:00 AM

Mon, Aug 17

7:00 AM

Mon, Aug 17

Possible

8:00 AM

Mon, Aug 17

8:00 AM

Mon, Aug 17

Possible

9:00 AM

Mon, Aug 17

9:00 AM

Mon, Aug 17

Good overlap

10:00 AM

Mon, Aug 17

10:00 AM

Mon, Aug 17

Good overlap

11:00 AM

Mon, Aug 17

11:00 AM

Mon, Aug 17

Good overlap

12:00 PM

Mon, Aug 17

12:00 PM

Mon, Aug 17

Good overlap

1:00 PM

Mon, Aug 17

1:00 PM

Mon, Aug 17

Good overlap

2:00 PM

Mon, Aug 17

2:00 PM

Mon, Aug 17

Good overlap

3:00 PM

Mon, Aug 17

3:00 PM

Mon, Aug 17

Good overlap

4:00 PM

Mon, Aug 17

4:00 PM

Mon, Aug 17

Good overlap

5:00 PM

Mon, Aug 17

5:00 PM

Mon, Aug 17

Good overlap

6:00 PM

Mon, Aug 17

6:00 PM

Mon, Aug 17

Possible

7:00 PM

Mon, Aug 17

7:00 PM

Mon, Aug 17

Possible

8:00 PM

Mon, Aug 17

8:00 PM

Mon, Aug 17

Possible

9:00 PM

Mon, Aug 17

9:00 PM

Mon, Aug 17

Night

10:00 PM

Mon, Aug 17

10:00 PM

Mon, Aug 17

Night

11:00 PM

Mon, Aug 17

11:00 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 Osaka from Busan

Compare typical business hours in Busan, South Korea and Osaka, Japan to find a practical time for calls, meetings or international coordination.

Busan

9:30 AM – 6:30 PM

South Korea

Best overlap

Osaka

9:30 AM – 6:30 PM

Japan

The best time to call Osaka from Busan is between 9:30 AM and 6:30 PM in Busan. This corresponds to 9:30 AM – 6:30 PM in Osaka.

Other reasonable windows

Busan

8:30 AM – 9:30 AM

Osaka

8:30 AM – 9:30 AM

Busan

6:30 PM – 9:30 PM

Osaka

6:30 PM – 9:30 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

Busan and Osaka time difference explained

Current local-time relationship

Busan and Osaka currently share the same local time.

Busan uses Asia/Seoul and currently has an offset of UTC+9. Osaka uses Asia/Tokyo and currently has an offset of UTC+9.

Working-hours overlap

For a typical 9:00 AM–6:00 PM workday, the cities overlap from 9:00 AM to 6:00 PM in Busan, corresponding to 9:00 AM–6:00 PM in Osaka.

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 Busan and Osaka.

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Local clocks

Explore each city

Current time in Busan Current time in Osaka

FAQ

Busan to Osaka time difference FAQ

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

What is the time difference between Busan and Osaka?

Busan, South Korea and Osaka, Japan currently have the same local time.

Is Osaka ahead of or behind Busan?

Busan and Osaka currently have the same local time.

What time is it in Osaka when it is 9:00 AM in Busan?

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

What is the best time to call Osaka from Busan?

Typical 9:00 AM–6:00 PM business hours overlap between 9:00 AM and 6:00 PM in Busan. This corresponds to 9:00 AM–6:00 PM in Osaka.

Can the time difference between Busan and Osaka change?

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