JST to BST time converter
British Time (BST) is 9 hours behind Japan Standard Time (JST) in January and 8 hours behind in July, because daylight saving time shifts the difference. Use the grid below to line up Tokyo and London: drag the cursor across the day, and working hours (9 AM–5 PM) are highlighted in every row so you can spot a slot that suits both sides.
Right now it is 18:43 JST in Tokyo and 10:43 BST in London.
2/10 zones · drag the tape, scroll sideways or use the arrow keys; Home jumps back to now.
JST to BST: frequently asked
What is the time difference between JST and BST?
British Time (BST) is 9 hours behind Japan Standard Time (JST) in January and 8 hours behind in July, because daylight saving time shifts the difference.
What time is 9 AM JST in BST?
9:00 AM JST is 12:00 AM BST in January, and 1:00 AM BST in July.
When do working hours overlap between Tokyo and London?
In January: Standard 9:00 AM–5:00 PM working hours never overlap. The closest fit is 6:00 PM JST, which is 9:00 AM BST. In July: Standard 9:00 AM–5:00 PM working hours never overlap. The closest fit is 5:00 PM JST, which is 9:00 AM BST.