GMT to JST Converter
Convert Greenwich Mean Time (GMT) to Japan Standard Time (JST).
Right now, Japan Standard Time (JST) is 8 hours ahead of Greenwich Mean Time (BST). (BST is UTC+1, JST is UTC+9.)
Common GMT → JST times
GMT to JST conversion table
| Greenwich Mean Time (GMT) | Japan Standard Time (JST) |
|---|---|
| 12:00 AM | 8:00 AM |
| 1:00 AM | 9:00 AM |
| 2:00 AM | 10:00 AM |
| 3:00 AM | 11:00 AM |
| 4:00 AM | 12:00 PM |
| 5:00 AM | 1:00 PM |
| 6:00 AM | 2:00 PM |
| 7:00 AM | 3:00 PM |
| 8:00 AM | 4:00 PM |
| 9:00 AM | 5:00 PM |
| 10:00 AM | 6:00 PM |
| 11:00 AM | 7:00 PM |
| 12:00 PM | 8:00 PM |
| 1:00 PM | 9:00 PM |
| 2:00 PM | 10:00 PM |
| 3:00 PM | 11:00 PM |
| 4:00 PM | 12:00 AM (next day) |
| 5:00 PM | 1:00 AM (next day) |
| 6:00 PM | 2:00 AM (next day) |
| 7:00 PM | 3:00 AM (next day) |
| 8:00 PM | 4:00 AM (next day) |
| 9:00 PM | 5:00 AM (next day) |
| 10:00 PM | 6:00 AM (next day) |
| 11:00 PM | 7:00 AM (next day) |
Times reflect the current date and update automatically for daylight saving time.
Converting Greenwich Mean Time to Japan Standard Time
Greenwich Mean Time (GMT) covers London, Dublin, Lisbon, while Japan Standard Time (JST) covers Tokyo, Osaka. The current offset between them is 8 hours, with JST ahead of GMT. Because at least one of these zones observes daylight saving time, the exact difference can shift by an hour at certain times of year — this page recalculates automatically so it is always current.
Frequently asked questions
What is the time difference between GMT and JST?
JST (Japan Standard Time) is currently 8 hours ahead of GMT (Greenwich Mean Time).
Is JST ahead of or behind GMT?
JST is 8 hours ahead of GMT as of the current date.
What is 9:00 AM GMT in JST?
9:00 AM GMT is 5:00 PM in JST.
Does Greenwich Mean Time (GMT) observe daylight saving time?
Yes. Greenwich Mean Time switches to BST during daylight saving time, and this converter adjusts the offset automatically. It is currently on BST.