BST to JST Time Converter
JST is 9 hours ahead of BST right now. 9:00 AM in BST is 6:00 PM in JST.
Time now: BST and JST
JST is 9 hours ahead of BST right now. The gap is not fixed: it is 8 hours at some times of the year and 9 hours at others, because at least one of them changes its clocks for daylight saving time.
BST to JST conversion table
Every hour of the day, using today's time difference.
| BST | JST |
|---|---|
| 12:00 AM | 9:00 AM |
| 1:00 AM | 10:00 AM |
| 2:00 AM | 11:00 AM |
| 3:00 AM | 12:00 PM |
| 4:00 AM | 1:00 PM |
| 5:00 AM | 2:00 PM |
| 6:00 AM | 3:00 PM |
| 7:00 AM | 4:00 PM |
| 8:00 AM | 5:00 PM |
| 9:00 AM | 6:00 PM |
| 10:00 AM | 7:00 PM |
| 11:00 AM | 8:00 PM |
| 12:00 PM | 9:00 PM |
| 1:00 PM | 10:00 PM |
| 2:00 PM | 11:00 PM |
| 3:00 PM | 12:00 AMnext day |
| 4:00 PM | 1:00 AMnext day |
| 5:00 PM | 2:00 AMnext day |
| 6:00 PM | 3:00 AMnext day |
| 7:00 PM | 4:00 AMnext day |
| 8:00 PM | 5:00 AMnext day |
| 9:00 PM | 6:00 AMnext day |
| 10:00 PM | 7:00 AMnext day |
| 11:00 PM | 8:00 AMnext day |
Best time to meet between BST and JST
There is no overlap between 9 AM and 6 PM in both places.
If both sides can be flexible (7 AM – 10 PM):
- 7:00 AM – 1:00 PM BST = 4:00 PM – 10:00 PM JST
The time difference changes during the year because of daylight saving time, so these windows shift by an hour at other times.
Does the time difference between BST and JST change?
Yes. Right now JST is 9 hours ahead of BST. These are the dates in the next 12 months when the gap changes:
- Sunday, 28 March 2027: BST moves its clocks forward. JST is 8 hours ahead of BST from then (it was 9 hours before).
- Sunday, 31 October 2027: BST moves its clocks back. JST is 9 hours ahead of BST from then (it was 8 hours before).
Office hours in each other's time
- 9 AM to 6 PM in BST is 6:00 PM to 3:00 AM (next day) in JST.
- 9 AM to 6 PM in JST is 12:00 AM to 9:00 AM in BST.
Based on today's clock settings.
Frequently asked questions
What is the time difference between BST and JST?
JST is 9 hours ahead of BST right now. The gap is not fixed: it is 8 hours at some times of the year and 9 hours at others, because at least one of them changes its clocks for daylight saving time.
How do I convert BST to JST?
Add 9 hours to the BST time to get the JST time (at today's difference). 9:00 AM in BST is 6:00 PM in JST. Or use the converter above and pick any date and time.
What is the current time in JST?
It is 8:58 AM in JST on Tuesday, November 10 (the converter above shows it live). At the same moment it is 11:58 PM in BST.
Does the time difference between BST and JST change during the year?
Yes. Right now JST is 9 hours ahead of BST. Over the next 12 months the gap changes 2 times: Sunday, 28 March 2027: BST moves its clocks forward. JST is 8 hours ahead of BST from then (it was 9 hours before). Sunday, 31 October 2027: BST moves its clocks back. JST is 9 hours ahead of BST from then (it was 8 hours before).
What is the best time for a meeting between BST and JST?
The two places have no shared working hours (9 AM – 6 PM). The nearest option is 7:00 AM – 1:00 PM BST = 4:00 PM – 10:00 PM JST.
What does BST mean?
The UK uses GMT in winter and BST in summer.