From
JST
Time Converter
JST to GMT Time Converter
Convert Japan Time to GMT with a live clock and clean permalinks.
To
GMT / BST
When it is 7:30 AM in Japan Time, it is 10:30 PM in GMT.
JST to GMT at a glance
GMT is 9 hours behind Japan Time. If someone gives you a time in Japan Time, move the clock by 9 hours to read it in GMT. A 9:00 AM start in Tokyo becomes 12:00 AM in London.
What Japan Time covers
Japan Time is used throughout Japan. Tokyo follows it year-round without daylight saving changes. It is helpful for manufacturing, gaming, and business coordination with Japan-based teams.
What GMT covers
GMT is commonly used as the United Kingdom time reference. In summer, the UK moves to British Summer Time. It is a familiar baseline for Europe, Africa, and global remote teams.
Quick answers
What is the time difference between JST and GMT?
GMT is 9 hours behind Japan Time.
What happens to a 3:00 PM meeting in JST?
It lands at 6:00 AM in GMT.
Does daylight saving time matter for JST to GMT?
Japan Time and GMT are shown using the offsets that are active right now, so the result already reflects any daylight saving change in effect today.