UTC to JST Time Converter

Convert Coordinated Universal Time to Japan Standard Time instantly.
Scroll the timeline to check any hour of the day.

Coordinated Universal Time UTC
8:23 PM Jun 20
Japan Standard Time JST
5:23 AM Jun 21

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How the UTC to JST time difference works

JST is 9 hours ahead of UTC. Coordinated Universal Time (UTC) is the global time standard the world sets its clocks by. Japan Standard Time (JST) is the time zone of Japan. For example, 9:00 AM UTC is 6:00 PM JST. Scroll the timeline above to convert any moment, or use the chart below for a quick reference.

Time difference
9 hours
Daylight saving
Neither
UTC offset
UTC+0
JST offset
UTC+9

UTC to JST conversion chart

Coordinated Universal Time (UTC) Japan Standard Time (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 AM +1 day
4:00 PM 1:00 AM +1 day
5:00 PM 2:00 AM +1 day
6:00 PM 3:00 AM +1 day
7:00 PM 4:00 AM +1 day
8:00 PM 5:00 AM +1 day
9:00 PM 6:00 AM +1 day
10:00 PM 7:00 AM +1 day
11:00 PM 8:00 AM +1 day

Cities in each time zone

Coordinated Universal Time (UTC)
ReykjavikAccraDakarAbidjanBamako
Japan Standard Time (JST)
TokyoOsakaYokohamaNagoyaSapporo

UTC to JST questions

Is JST ahead of or behind UTC?
JST is 9 hours ahead of UTC. So 9:00 AM UTC is 6:00 PM JST, and 5:00 PM UTC is 2:00 AM JST.
What time is it in JST when it is 12:00 PM UTC?
When it is 12:00 PM (noon) UTC in Coordinated Universal Time, it is 9:00 PM JST in Japan Standard Time.
How many hours difference is there between UTC and JST?
There is a 9 hours difference. Japan Standard Time (JST) runs 9 hours ahead of Coordinated Universal Time (UTC).
Do UTC and JST observe daylight saving time?
Neither Coordinated Universal Time nor Japan Standard Time observes daylight saving time, so the 9 hours difference between them is the same all year.
What is the best time to schedule a meeting between UTC and JST?
A standard 9-to-5 workday in Coordinated Universal Time and Japan Standard Time does not overlap, so pick the early morning in the later zone or the late evening in the earlier zone.
Which cities use UTC and JST?
Coordinated Universal Time (UTC) covers cities such as Reykjavik, Accra, Dakar, Abidjan, Bamako. Japan Standard Time (JST) covers cities such as Tokyo, Osaka, Yokohama, Nagoya, Sapporo.

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