Time Difference

Osaka vs Busan Time Difference

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

Live local timeDST awareUTC offsets

From

Osaka

Japan

7:32 AM

Mon, Aug 17

UTC+9Asia/Tokyo

Difference

Same time

Swap

Busan

South Korea

7:32 AM

Mon, Aug 17

UTC+9Asia/Seoul

Current difference

Osaka and Busan 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 Osaka and Busan hour by hour

See how a full local day in Osaka, Japan maps to Busan, South Korea. 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 Osaka

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

9 hours overlap

Osaka

Asia/Tokyo

Busan

Asia/Seoul

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 Busan from Osaka

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

Osaka

9:32 AM – 6:32 PM

Japan

Best overlap

Busan

9:32 AM – 6:32 PM

South Korea

The best time to call Busan from Osaka is between 9:32 AM and 6:32 PM in Osaka. This corresponds to 9:32 AM – 6:32 PM in Busan.

Other reasonable windows

Osaka

7:32 AM – 9:32 AM

Busan

7:32 AM – 9:32 AM

Osaka

6:32 PM – 9:32 PM

Busan

6:32 PM – 9:32 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

Osaka and Busan time difference explained

Current local-time relationship

Osaka and Busan currently share the same local time.

Osaka uses Asia/Tokyo and currently has an offset of UTC+9. Busan uses Asia/Seoul 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 Osaka, corresponding to 9:00 AM–6:00 PM in Busan.

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 Osaka and Busan.

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Local clocks

Explore each city

Current time in Osaka Current time in Busan

FAQ

Osaka to Busan time difference FAQ

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

What is the time difference between Osaka and Busan?

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

Is Busan ahead of or behind Osaka?

Osaka and Busan currently have the same local time.

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

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

What is the best time to call Busan from Osaka?

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

Can the time difference between Osaka and Busan change?

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