Tokyo to London Time
London is currently 8 hours behind Tokyo.
- 9:00 AM GMT+9 → 1:00 AM GMT+1
- 12:00 PM GMT+9 → 4:00 AM GMT+1
- 5:00 PM GMT+9 → 9:00 AM GMT+1
Need the opposite direction? London to Tokyo Time →
Current Time
Tokyo
+09:00Wed, Jul 15 · GMT+9
London
+01:00Tue, Jul 14 · GMT+1
Daylight Saving Time Status
Tokyo
Tokyo does not observe Daylight Saving Time.
London
London is currently observing GMT+1 (summer time). Returns to standard time on October 25, 2026.
Best Meeting Times
| Tokyo Time | London Time | Meeting Suitability |
|---|---|---|
| 00:00 | 16:00-1d | — |
| 01:00 | 17:00-1d | — |
| 02:00 | 18:00-1d | — |
| 03:00 | 19:00-1d | — |
| 04:00 | 20:00-1d | — |
| 05:00 | 21:00-1d | — |
| 06:00 | 22:00-1d | — |
| 07:00 | 23:00-1d | — |
| 08:00 | 00:00 | — |
| 09:00 | 01:00 | — |
| 10:00 | 02:00 | — |
| 11:00 | 03:00 | — |
| 12:00 | 04:00 | — |
| 13:00 | 05:00 | — |
| 14:00 | 06:00 | — |
| 15:00 | 07:00 | — |
| 16:00 | 08:00 | ⚠️ Edge |
| 17:00 | 09:00 | ✅ Good |
| 18:00 | 10:00 | ⚠️ Edge |
| 19:00 | 11:00 | — |
| 20:00 | 12:00 | — |
| 21:00 | 13:00 | — |
| 22:00 | 14:00 | — |
| 23:00 | 15:00 | — |
✅ Both cities within 9 AM–6 PM ⚠️ One city on edge of working hours
About This Time Zone Pair
Tokyo and London are separated by a moderate-to-large offset. The usable window for calls or meetings, if any, tends to fall at the edges of one side's working day. Keep in mind that seasonal clock changes on the European side can shift the window by one hour.
Tokyo (GMT+9) is 8 hours ahead of London (GMT+1). When it's 9:00 AM in Tokyo, it's 1:00 AM in London.
London observes Daylight Saving Time, which means the offset between the two cities may shift by one hour during DST transitions.
The best window for calls, chats, or meetings between Tokyo and London is 5pm–6pm GMT+9 — that's 9am–10am GMT+1 for London. Outside this window, async communication or recorded video is more practical.
For one-off conversions, use the converter above. For recurring calls or meetings, export an .ics calendar invite — attendees see the time in their local zone automatically.
This guide covers Tokyo (JST) to London (GMT) specifically. To convert a different pair, browse all conversions or add cities directly in the converter above.
Frequently Asked Questions
- What is the time difference between Tokyo and London?
- London is 8 hours behind Tokyo. This offset may shift by one hour when either city transitions in or out of Daylight Saving Time.
- What is a good meeting time between Tokyo and London?
- The best window is 5pm–6pm Tokyo time, which is 9am–10am in London. Both cities are within standard working hours during this range.
- Does Tokyo observe Daylight Saving Time?
- No. Tokyo (JST) does not observe Daylight Saving Time. The offset remains constant year-round.
- How do I convert JST to GMT manually?
- Subtract 8 hours to the JST time. For example, 9:00 AM JST = 1:00 AM GMT. (DST may shift this by ±1 hour twice a year.)
- Is Tokyo ahead of or behind London?
- Tokyo is 8 hours ahead of London. When it is noon in Tokyo, it is 4:00 AM in London.
- What are common JST to GMT conversions?
- Some quick examples: 9:00 AM GMT+9 = 1:00 AM GMT+1 · 12:00 PM GMT+9 = 4:00 AM GMT+1 · 5:00 PM GMT+9 = 9:00 AM GMT+1. Use the table above for all 24 hours.
Related Guides
Fact card
- Route:
- Tokyo → London
- Current offset:
- London is 8 hours behind Tokyo
- Timezone data:
- IANA tz database (tzdata)
- DST handling:
- Automatic — offset reflects the actual UTC offset at each moment
- Last calculated:
- Generated at build time, revalidates every 60 seconds
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