BuddyClock

GMT to JST

Convert Greenwich Mean Time (GMT) to Japan Standard Time (JST) instantly. Free, fast and accurate time zone converter with real-time updates.

About this converter

Greenwich Mean Time (GMT)
UTC offset: +0 hours
Japan Standard Time (JST)
UTC offset: +9 hours

GMT to JST Time Converter Chart

GMT TimeJST Time
12:00 AM GMT9:00 AM JST
12:30 AM GMT9:30 AM JST
1:00 AM GMT10:00 AM JST
1:30 AM GMT10:30 AM JST
2:00 AM GMT11:00 AM JST
2:30 AM GMT11:30 AM JST
3:00 AM GMT12:00 PM JST
3:30 AM GMT12:30 PM JST
4:00 AM GMT1:00 PM JST
4:30 AM GMT1:30 PM JST
5:00 AM GMT2:00 PM JST
5:30 AM GMT2:30 PM JST
6:00 AM GMT3:00 PM JST
6:30 AM GMT3:30 PM JST
7:00 AM GMT4:00 PM JST
7:30 AM GMT4:30 PM JST
8:00 AM GMT5:00 PM JST
8:30 AM GMT5:30 PM JST
9:00 AM GMT6:00 PM JST
9:30 AM GMT6:30 PM JST
10:00 AM GMT7:00 PM JST
10:30 AM GMT7:30 PM JST
11:00 AM GMT8:00 PM JST
11:30 AM GMT8:30 PM JST
12:00 PM GMT9:00 PM JST
12:30 PM GMT9:30 PM JST
1:00 PM GMT10:00 PM JST
1:30 PM GMT10:30 PM JST
2:00 PM GMT11:00 PM JST
2:30 PM GMT11:30 PM JST
3:00 PM GMT12:00 AM JST
3:30 PM GMT12:30 AM JST
4:00 PM GMT1:00 AM JST
4:30 PM GMT1:30 AM JST
5:00 PM GMT2:00 AM JST
5:30 PM GMT2:30 AM JST
6:00 PM GMT3:00 AM JST
6:30 PM GMT3:30 AM JST
7:00 PM GMT4:00 AM JST
7:30 PM GMT4:30 AM JST
8:00 PM GMT5:00 AM JST
8:30 PM GMT5:30 AM JST
9:00 PM GMT6:00 AM JST
9:30 PM GMT6:30 AM JST
10:00 PM GMT7:00 AM JST
10:30 PM GMT7:30 AM JST
11:00 PM GMT8:00 AM JST
11:30 PM GMT8:30 AM JST

Frequently Asked Questions: GMT to JST

What is the time difference between GMT and JST?

Japan Standard Time (JST) is 9 hours ahead of Greenwich Mean Time (GMT). When converting from GMT to JST, you need to add 9 hours to get the correct time.

When it's 12:00 PM (noon) in GMT, what time is it in JST?

When it's 12:00 PM (noon) in Greenwich Mean Time, it's 9:00 PM in Japan Standard Time. This is because JST is 9 hours ahead of GMT.

When it's midnight in GMT, what time is it in JST?

When it's 12:00 AM (midnight) in Greenwich Mean Time, it's 9:00 AM in Japan Standard Time.

What are the UTC offsets for GMT and JST?

Greenwich Mean Time (GMT) has a UTC offset of +0:00, while Japan Standard Time (JST) has a UTC offset of +9:00.

How do I quickly convert GMT to JST in my head?

Simply add 9 hours to the GMT time. For example, 3:00 PM GMT becomes 12:00 AM JST.

What is the best time to schedule a call between GMT and JST?

The best time depends on both parties' schedules. A common overlap during business hours (9 AM - 5 PM) would be when it's early morning in GMT. Use our converter to find the perfect time.

Do GMT and JST observe Daylight Saving Time?

Daylight Saving Time (DST) observance varies by region. Some areas within Greenwich Mean Time and Japan Standard Time zones may observe DST, which can temporarily change the time difference by 1 hour.

What countries or regions use GMT?

Greenwich Mean Time (GMT) is used by various countries and regions around the world. The UTC offset of +0:00 is shared by multiple time zones.

What countries or regions use JST?

Japan Standard Time (JST) is used by various countries and regions around the world. With a UTC offset of +9:00, this time zone covers multiple geographic areas.

Is there an easy way to remember the GMT to JST time difference?

Yes! Remember that JST is always 9 hours ahead of GMT. If it's noon in GMT, it's 9:00 PM in JST. Bookmark this page for quick reference!

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