Greenwich Mean Time (gmt) is used in United Kingdom. The IANA timezone identifier is Europe/London.

TOKYO (Tokyo) (tokyo) is used in Japan. The IANA timezone identifier is Asia/Tokyo.

GMT to TOKYO Time Converter

Greenwich Mean Time → TOKYO (Tokyo)

GMT = UTC+1TOKYO = UTC+9

ClockinSync

BASE

09:00

Work Clients Team +

00:0006:0012:0018:0024:00

Tokyo

Japan · +8h

17:00

New York

USA · -5h

04:00

Dubai

United Arab Emirates · +3h

12:00

Sydney

Australia · +9h

18:00

Paris

France · +1h

10:00

GMT (London) ↔ Tokyo — time offset

GMT (London) is 8 hours behind Tokyo. Midday in GMT (London) lines up with 20:00 in Tokyo.

GMT (London) is in the Europe/London timezone. Tokyo is in Asia/Tokyo. The difference is 8 hours.

Mutual working hours

GMT (London) and Tokyo have no shared working hours under a standard 9:00–17:00 schedule. One side will always need to join at an off-hour.

When to schedule across time zones

Since GMT (London) and Tokyo don't share working hours, these are the most practical options available.

08:00 London / 16:00 Tokyo⚡ One side off-hours

⚠️ 1h before working hours in London

09:00 London / 17:00 Tokyo⚡ One side off-hours

⚠️ 1h after working hours in Tokyo

07:00 London / 15:00 Tokyo⚡ One side off-hours

⚠️ 2h before working hours in London

Based on standard 09:00–17:00 working hours in each location's local time.

Upcoming public holidays

⚡ Watch out — upcoming holidays on both sides. Verify availability in advance.

GMT (London)6 holidays

Jul 13Battle of the Boyne

Aug 3Summer Bank Holiday

Aug 31Summer Bank Holiday

Nov 30Saint Andrew's Day

Dec 25Christmas Day

Tokyo7 holidays

Jul 20Marine Day

Aug 11Mountain Day

Sep 21Respect for the Aged Day

Sep 23Autumnal Equinox Day

Oct 12Sports Day

How to work with GMT (London) and Tokyo time zones

GMT (London) (United Kingdom) and Tokyo (Japan) are 8 hours apart — far enough that standard 9–5 schedules do not overlap. Any real-time meeting means someone is joining outside their normal hours.

💡 How to schedule across these time zones

⚡

When GMT (London) is at 08:00, Tokyo reads 16:00 — 1h before working hours in London.

⚡

When GMT (London) is at 09:00, Tokyo reads 17:00 — 1h after working hours in Tokyo.

⚡

When GMT (London) is at 07:00, Tokyo reads 15:00 — 2h before working hours in London.

Since there is no natural overlap, the options above represent the most balanced compromise, minimizing out-of-hours inconvenience for both sides.

DST transitions can silently shift your meeting times by an hour. The ClockinSync Chrome Extension tracks these changes automatically so you never get caught off guard.

Get the Extension — Free →

Use the time slider above to find the exact equivalent time for any moment in GMT (London). The input bar accepts natural language like "3pm", "15:30", or "9am Rome" for instant conversions.

GMT (London) ↔ TOKYO (Tokyo)

No overlap — one side will join outside working hours

GMT (London)

TOKYO (Tokyo)

00:00

08:00

01:00

09:00Working

02:00

10:00Working

03:00

11:00Working

04:00

12:00Working

05:00

13:00Working

06:00

14:00Working

07:00

15:00Working

08:00

16:00Working

09:00Working

17:00off

10:00Working

18:00off

11:00Working

19:00off

12:00Working

20:00off

13:00Working

21:00off

14:00Working

22:00off

15:00Working

23:00off

16:00Working

00:00+1doff

17:00

01:00+1d

18:00

02:00+1d

19:00

03:00+1d

20:00

04:00+1d

21:00

05:00+1d

22:00

06:00+1d

23:00

07:00+1d

Working hours: 09:00–17:00 local. Green = both working. Purple = one side only.

Frequently Asked Questions

What is the difference between gmt and tokyo?

Greenwich Mean Time (gmt) is UTC+1 and TOKYO (Tokyo) (tokyo) is UTC+9. The difference between them is 8 hours.

Where is gmt used?

Greenwich Mean Time (gmt) is used in United Kingdom and surrounding regions. The IANA timezone identifier is Europe/London.

Where is tokyo used?

TOKYO (Tokyo) (tokyo) is used in Japan and surrounding regions. The IANA timezone identifier is Asia/Tokyo.

How do I convert gmt to tokyo?

Use the interactive converter above. Drag the time slider to any gmt time and the tokyo equivalent updates instantly. You can also type a time like "3pm" or "15:00" in the input bar.

Popular GMT conversions

GMT → New York GMT → Tokyo GMT → Dubai GMT → Sydney GMT → Paris GMT → Berlin GMT → Singapore GMT → Los Angeles GMT → Toronto GMT → Mumbai

Popular TOKYO conversions

London → TOKYO New York → TOKYO Dubai → TOKYO Sydney → TOKYO Paris → TOKYO Berlin → TOKYO Singapore → TOKYO Los Angeles → TOKYO Toronto → TOKYO Mumbai → TOKYO