GST to JST Converter

JST is 5h 0m ahead of GST. When it's 12:00 PM GST, it's 5:00 PM JST.

From

GST · UTC+4

8:09:52AM

Gulf Standard Time

e.g. Dubai

To

JST · UTC+9

1:09:52PM

Japan Standard Time

e.g. Tokyo

Open in World ClockJST → GST
9:00 AM GST=2:00 PM JST
12:00 PM GST=5:00 PM JST
5:00 PM GST=10:00 PM JST

Hourly conversion (GST → JST)

GSTJST
12:00 AM5:00 AM
1:00 AM6:00 AM
2:00 AM7:00 AM
3:00 AM8:00 AM
4:00 AM9:00 AM
5:00 AM10:00 AM
6:00 AM11:00 AM
7:00 AM12:00 PM
8:00 AM1:00 PM
9:00 AM2:00 PM
10:00 AM3:00 PM
11:00 AM4:00 PM
12:00 PM5:00 PM
1:00 PM6:00 PM
2:00 PM7:00 PM
3:00 PM8:00 PM
4:00 PM9:00 PM
5:00 PM10:00 PM
6:00 PM11:00 PM
7:00 PM12:00 AM(+1 day)
8:00 PM1:00 AM(+1 day)
9:00 PM2:00 AM(+1 day)
10:00 PM3:00 AM(+1 day)
11:00 PM4:00 AM(+1 day)

Shaded rows are within standard working hours (8am–6pm) on both sides.

Japan does not observe daylight saving time, so JST (UTC+9) applies year-round.

More GST conversions

Frequently asked questions

What is the time difference between GST and JST?
JST is 5h 0m ahead of GST. GST is UTC+4 and JST is UTC+9.
What is 12:00 PM GST in JST?
12:00 PM GST is 5:00 PM JST.
Does GST change for daylight saving time?
GST is a fixed offset of UTC+4 and does not itself change for daylight saving time.