Time Difference

Osaka vs London Time Difference

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

Live local timeDST awareUTC offsets

From

Osaka

Japan

12:04 PM

Mon, Aug 17

UTC+9Asia/Tokyo

Difference

8 hours

Swap

London

United Kingdom

4:04 AM

Mon, Aug 17

UTC+1Europe/London

Current difference

London is currently 8 hours behind Osaka.

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

24-hour comparison

Compare Osaka and London hour by hour

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

24-hour day

Best working-hours overlap

5:00 PM – 6:00 PM in Osaka

corresponds to 9:00 AM – 10:00 AM in London.

1 hour overlap

Osaka

Asia/Tokyo

London

Europe/London

Availability

12:00 AM

Mon, Aug 17

4:00 PM

Previous day

Sun, Aug 16

Night

1:00 AM

Mon, Aug 17

5:00 PM

Previous day

Sun, Aug 16

Night

2:00 AM

Mon, Aug 17

6:00 PM

Previous day

Sun, Aug 16

Night

3:00 AM

Mon, Aug 17

7:00 PM

Previous day

Sun, Aug 16

Night

4:00 AM

Mon, Aug 17

8:00 PM

Previous day

Sun, Aug 16

Night

5:00 AM

Mon, Aug 17

9:00 PM

Previous day

Sun, Aug 16

Night

6:00 AM

Mon, Aug 17

10:00 PM

Previous day

Sun, Aug 16

Night

7:00 AM

Mon, Aug 17

11:00 PM

Previous day

Sun, Aug 16

Night

8:00 AM

Mon, Aug 17

12:00 AM

Mon, Aug 17

Night

9:00 AM

Mon, Aug 17

1:00 AM

Mon, Aug 17

Night

10:00 AM

Mon, Aug 17

2:00 AM

Mon, Aug 17

Night

11:00 AM

Mon, Aug 17

3:00 AM

Mon, Aug 17

Night

12:00 PM

Mon, Aug 17

4:00 AM

Mon, Aug 17

Night

1:00 PM

Mon, Aug 17

5:00 AM

Mon, Aug 17

Night

2:00 PM

Mon, Aug 17

6:00 AM

Mon, Aug 17

Night

3:00 PM

Mon, Aug 17

7:00 AM

Mon, Aug 17

Possible

4:00 PM

Mon, Aug 17

8:00 AM

Mon, Aug 17

Possible

5:00 PM

Mon, Aug 17

9:00 AM

Mon, Aug 17

Good overlap

6:00 PM

Mon, Aug 17

10:00 AM

Mon, Aug 17

Possible

7:00 PM

Mon, Aug 17

11:00 AM

Mon, Aug 17

Possible

8:00 PM

Mon, Aug 17

12:00 PM

Mon, Aug 17

Possible

9:00 PM

Mon, Aug 17

1:00 PM

Mon, Aug 17

Night

10:00 PM

Mon, Aug 17

2:00 PM

Mon, Aug 17

Night

11:00 PM

Mon, Aug 17

3:00 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 London from Osaka

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

Osaka

5:04 PM – 6:04 PM

Japan

Best overlap

London

9:04 AM – 10:04 AM

United Kingdom

The best time to call London from Osaka is between 5:04 PM and 6:04 PM in Osaka. This corresponds to 9:04 AM – 10:04 AM in London.

Other reasonable windows

Osaka

3:04 PM – 5:04 PM

London

7:04 AM – 9:04 AM

Osaka

6:04 PM – 9:04 PM

London

10:04 AM – 1:04 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 London time difference explained

Current local-time relationship

London is currently 8 hours behind Osaka.

Osaka uses Asia/Tokyo and currently has an offset of UTC+9. London uses Europe/London and currently has an offset of UTC+1.

Working-hours overlap

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

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 London.

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Local clocks

Explore each city

Current time in Osaka Current time in London

FAQ

Osaka to London time difference FAQ

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

What is the time difference between Osaka and London?

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

Is London ahead of or behind Osaka?

London is currently 8 hours behind Osaka.

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

Using the current UTC offsets, 9:00 AM in Osaka corresponds to 1:00 AM in London. The exact difference can change when daylight-saving rules change.

What is the best time to call London from Osaka?

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

Can the time difference between Osaka and London change?

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