Understanding the Time Difference Between London and Tokyo
Tokyo uses the Asia/Tokyo time zone (JST) year‑round and does not observe daylight saving time. London switches between GMT and BST, so Tokyo is usually 8 or 9 hours ahead depending on the season. Use the live clocks and 24-hour table for exact conversions on any date.
Best Hours for Business Communication
The most workable overlap is usually London morning and Tokyo late afternoon/early evening. If you schedule far ahead, re-check the offset because London’s DST can shift Tokyo’s local meeting time by 1 hour.
Based on this overlap, we recommend scheduling meetings during the shared business hours window where both cities are within their typical 9:00–17:00 workday.
Daylight Saving Time Considerations
London observes daylight saving time, while Tokyo does not. That means the London–Tokyo time difference changes by 1 hour when the UK switches between GMT and BST—so always confirm the exact offset for the meeting date with the live clocks.
Practical Examples
For Remote Teams
For remote teams, start with London early morning and Tokyo late afternoon as your default. If the meeting is recurring, consider rotating occasionally so the same side isn’t always at the edge of the day.
For International Business
When conducting business calls between London and Tokyo, the morning hours in London typically offer the best overlap with afternoon hours in Tokyo.