London to Tokyo Time
GMT to JST Converter — 9 AM GMT is 6:00 PM JST
London is 9 hours behind Tokyo. Convert any time between London (GMT/BST) and Tokyo (JST) instantly.
London
United Kingdom
Tokyo
Japan
Add Time Zones to Compare
Time Zone Comparison
London to Tokyo Time Conversion Table
| London (GMT) | Tokyo (JST) |
|---|---|
| 12:00 AM | 8:00 AM |
| 2:00 AM | 10:00 AM |
| 4:00 AM | 12:00 PM |
| 6:00 AM | 2:00 PM |
| 8:00 AM | 4:00 PM |
| 10:00 AM | 6:00 PM |
| 12:00 PM | 8:00 PM |
| 2:00 PM | 10:00 PM |
| 4:00 PM | 12:00 AM |
| 6:00 PM | 2:00 AM |
| 8:00 PM | 4:00 AM |
| 10:00 PM | 6:00 AM |
London & Tokyo — Business & Scheduling Guide
London (United Kingdom) is a leading center for finance and international trade, with key industries in finance, insurance, media, and professional services. Tokyo (Japan) is the world's third-largest economy, known for automotive, electronics, robotics, and precision instruments. With a 9-hour time difference, professionals frequently schedule cross-border calls between these two cities for international trade, remote team collaboration, and client meetings.
Scheduling Meetings Between London and Tokyo
With Tokyo 9 hours ahead of London, there is minimal overlap in standard business hours. Most teams alternate meeting times to share the burden of early-morning or late-evening calls fairly. British business culture values politeness and punctuality, with typical hours of 9 AM–5:30 PM. Japanese business culture places high value on respect and hierarchy, with typical hours of 9 AM–6 PM. Consider recording meetings for those who can't attend live, and use shared documents for async collaboration.
Daylight Saving Time Considerations
London observes Daylight Saving Time (GMT/BST), but Tokyo does not — it stays on JST year-round. This means the time difference between London and Tokyo changes by 1 hour when London switches clocks. During United Kingdom's summer, the gap is 8–10 hours instead of the standard 9 hours. Mark DST transition dates on your calendar to avoid missed meetings.
GMT to JST — Quick Reference
GMT (GMT/BST) stands for the timezone used in London, United Kingdom (UTC+0). JST (JST) is the timezone used in Tokyo, Japan (UTC+9). London is 9 hours behind Tokyo.
To convert GMT to JST, add 9 hours to GMT time. For example, GMT 9:00 AM = JST 6:00 PM.
Key Facts
- •Time difference: London (UTC+0) is 9 hours behind Tokyo (UTC+9).
- •Daylight Saving Time: London observes DST (GMT/BST). Tokyo does not observe DST (JST).
- •Regions: London is located in United Kingdom and uses the GMT/BST time zone. Tokyo is located in Japan and uses the JST time zone.
- •Best time to call: There are no overlapping standard work hours (9 AM - 5 PM) between these two cities.
Frequently Asked Questions
What is the time difference between London and Tokyo?
London is 9 hours behind Tokyo.
What time is it in Tokyo when it's 9 AM in London?
When it's 9:00 AM in London, it is 6:00 PM in Tokyo.
What time is 9 PM GMT in JST?
9 PM GMT (London time) is 6:00 AM JST (Tokyo time). This is a common time people check when scheduling evening calls across these two time zones.
When is the best time to schedule a meeting between London and Tokyo?
There are no overlapping standard work hours (9 AM - 5 PM) between these two cities.
How do I convert GMT to JST?
GMT (GMT/BST) is the timezone for London, United Kingdom (UTC+0). JST (JST) is the timezone for Tokyo, Japan (UTC+9). London is 9 hours behind Tokyo. Quick examples: 9 AM GMT = 6:00 PM JST, 12 PM GMT = 9:00 PM JST, 3 PM GMT = 12:00 AM JST, 6 PM GMT = 3:00 AM JST.
Is London ahead of or behind Tokyo?
London is 9 hours behind Tokyo. When it's noon in London, it's 9:00 PM in Tokyo.
Does London or Tokyo change clocks for Daylight Saving Time?
Yes, London observes DST and switches between GMT/BST. Tokyo does not observe DST — it stays on JST year-round. Because only one city observes DST, the time difference shifts by 1 hour during transition periods (typically March/April and October/November).
Related Time Zone Conversions
More from London
Convert to Tokyo
Working across time zones?
Auto-sync calendar events into your timesheet — no matter what time zone your team is in. Connect Google Calendar, Teams, or Zoom and export a polished timesheet in seconds.
No credit card required. Free forever plan available.