Time Difference Between Iruma and London
London is 8 hours behind Iruma.
Japan
Iruma
Asia/Tokyo · UTC+9
United Kingdom
London
Europe/London · UTC+1
Best Times to Meet
Hours where standard working time (9 AM – 6 PM) overlaps in both Iruma and London.
Iruma
5:00 PM
London
9:00 AM
Iruma to London — 24-Hour Conversion
Each row shows the equivalent local time in London for an hour in Iruma. Working-hours rows (9–18) are highlighted.
| Iruma | London | Match |
|---|---|---|
| -1 day | Workday in London | |
| -1 day | Workday in London | |
| -1 day | Off hours | |
| -1 day | Off hours | |
| -1 day | Off hours | |
| -1 day | Off hours | |
| -1 day | Off hours | |
| -1 day | Off hours | |
| Off hours | ||
| Workday in Iruma | ||
| Workday in Iruma | ||
| Workday in Iruma | ||
| Workday in Iruma | ||
| Workday in Iruma | ||
| Workday in Iruma | ||
| Workday in Iruma | ||
| Workday in Iruma | ||
| Best for meetings | ||
| Workday in London | ||
| Workday in London | ||
| Workday in London | ||
| Workday in London | ||
| Workday in London | ||
| Workday in London |
Frequently Asked Questions
What is the time difference between Iruma and London?
London, United Kingdom (UTC+1) is 8 hours behind Iruma, Japan (UTC+9).
What is the best time to schedule a meeting between Iruma and London?
The best meeting times overlap when both cities are within standard working hours (9 AM – 6 PM). The full hour-by-hour table on this page lists every overlap window.
Does daylight saving time change the difference between Iruma and London?
Yes — when one city observes daylight saving time and the other does not, the gap shifts by an hour. The conversion table on this page reflects the current offset, including any active DST.
When it is 9 AM in Iruma, what time is it in London?
Use the conversion table on this page — every hour in Iruma is mapped to its equivalent local time in London, including day shift markers when the date differs.