Time Difference

London vs Osaka Time Difference

Compare the current local time in London, United Kingdom and Osaka, Japan.

Live local timeDST awareUTC offsets

From

London

United Kingdom

4:03 AM

Mon, Aug 17

UTC+1Europe/London

Difference

8 hours

Swap

Osaka

Japan

12:03 PM

Mon, Aug 17

UTC+9Asia/Tokyo

Current difference

Osaka is currently 8 hours ahead of London.

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

24-hour comparison

Compare London and Osaka hour by hour

See how a full local day in London, United Kingdom 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 – 10:00 AM in London

corresponds to 5:00 PM – 6:00 PM in Osaka.

1 hour overlap

London

Europe/London

Osaka

Asia/Tokyo

Availability

12:00 AM

Mon, Aug 17

8:00 AM

Mon, Aug 17

Night

1:00 AM

Mon, Aug 17

9:00 AM

Mon, Aug 17

Night

2:00 AM

Mon, Aug 17

10:00 AM

Mon, Aug 17

Night

3:00 AM

Mon, Aug 17

11:00 AM

Mon, Aug 17

Night

4:00 AM

Mon, Aug 17

12:00 PM

Mon, Aug 17

Night

5:00 AM

Mon, Aug 17

1:00 PM

Mon, Aug 17

Night

6:00 AM

Mon, Aug 17

2:00 PM

Mon, Aug 17

Night

7:00 AM

Mon, Aug 17

3:00 PM

Mon, Aug 17

Possible

8:00 AM

Mon, Aug 17

4:00 PM

Mon, Aug 17

Possible

9:00 AM

Mon, Aug 17

5:00 PM

Mon, Aug 17

Good overlap

10:00 AM

Mon, Aug 17

6:00 PM

Mon, Aug 17

Possible

11:00 AM

Mon, Aug 17

7:00 PM

Mon, Aug 17

Possible

12:00 PM

Mon, Aug 17

8:00 PM

Mon, Aug 17

Possible

1:00 PM

Mon, Aug 17

9:00 PM

Mon, Aug 17

Night

2:00 PM

Mon, Aug 17

10:00 PM

Mon, Aug 17

Night

3:00 PM

Mon, Aug 17

11:00 PM

Mon, Aug 17

Night

4:00 PM

Mon, Aug 17

12:00 AM

Next day

Tue, Aug 18

Night

5:00 PM

Mon, Aug 17

1:00 AM

Next day

Tue, Aug 18

Night

6:00 PM

Mon, Aug 17

2:00 AM

Next day

Tue, Aug 18

Night

7:00 PM

Mon, Aug 17

3:00 AM

Next day

Tue, Aug 18

Night

8:00 PM

Mon, Aug 17

4:00 AM

Next day

Tue, Aug 18

Night

9:00 PM

Mon, Aug 17

5:00 AM

Next day

Tue, Aug 18

Night

10:00 PM

Mon, Aug 17

6:00 AM

Next day

Tue, Aug 18

Night

11:00 PM

Mon, Aug 17

7:00 AM

Next day

Tue, Aug 18

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 London

Compare typical business hours in London, United Kingdom and Osaka, Japan to find a practical time for calls, meetings or international coordination.

London

9:00 AM – 10:00 AM

United Kingdom

Best overlap

Osaka

5:00 PM – 6:00 PM

Japan

The best time to call Osaka from London is between 9:00 AM and 10:00 AM in London. This corresponds to 5:00 PM – 6:00 PM in Osaka.

Other reasonable windows

London

7:00 AM – 9:00 AM

Osaka

3:00 PM – 5:00 PM

London

10:00 AM – 1:00 PM

Osaka

6:00 PM – 9:00 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

London and Osaka time difference explained

Current local-time relationship

Osaka is currently 8 hours ahead of London.

London uses Europe/London and currently has an offset of UTC+1. 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 10:00 AM in London, corresponding to 5:00 PM–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 London and Osaka.

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Local clocks

Explore each city

Current time in London Current time in Osaka

FAQ

London to Osaka time difference FAQ

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

What is the time difference between London and Osaka?

The current time difference between London and Osaka is 8 hours. Osaka is currently 8 hours ahead of London.

Is Osaka ahead of or behind London?

Osaka is currently 8 hours ahead of London.

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

Using the current UTC offsets, 9:00 AM in London corresponds to 5:00 PM in Osaka. The exact difference can change when daylight-saving rules change.

What is the best time to call Osaka from London?

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

Can the time difference between London and Osaka change?

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