Skip to content
DateAlmanac

What is JST in GST?

Gulf Standard Time is 5 hours behind

Japan Standard Time is on UTC+9:00 and Gulf Standard Time is on UTC+4:00 right now. That gap holds all year, because both zones change their clocks together.

Time in Tokyo
9:53:10 PM
Time in Dubai
4:53:10 PM
Difference
−5 h
Next clock change
Neither zone

Convert a time

GST — Gulf Standard Time

4:00 pm

GST, Fri

Daylight saving

Japan Standard Time

No clock changes

Japan Standard Time stays on JST all year, so its offset from UTC never moves.

Gulf Standard Time

No clock changes

Gulf Standard Time stays on GST all year, so its offset from UTC never moves.

JST to GST conversion table

Every hour of Friday, September 25, 2026, converted from Japan Standard Time to Gulf Standard Time. 5 of the 24 hours fall on a different calendar day in Dubai, which is marked.

12:00 am JST
7:00 pm GST−1 day
1:00 am JST
8:00 pm GST−1 day
2:00 am JST
9:00 pm GST−1 day
3:00 am JST
10:00 pm GST−1 day
4:00 am JST
11:00 pm GST−1 day
5:00 am JST
12:00 am GST
6:00 am JST
1:00 am GST
7:00 am JST
2:00 am GST
8:00 am JST
3:00 am GST
9:00 am JST
4:00 am GST
10:00 am JST
5:00 am GST
11:00 am JST
6:00 am GST
12:00 pm JST
7:00 am GST
1:00 pm JST
8:00 am GST
2:00 pm JST
9:00 am GST
3:00 pm JST
10:00 am GST
4:00 pm JST
11:00 am GST
5:00 pm JST
12:00 pm GST
6:00 pm JST
1:00 pm GST
7:00 pm JST
2:00 pm GST
8:00 pm JST
3:00 pm GST
9:00 pm JST
4:00 pm GST
10:00 pm JST
5:00 pm GST
11:00 pm JST
6:00 pm GST

Scheduling between the two

Working hours overlap from 2:00 pm to 6:00 pm JST, which is 9:00 am to 1:00 pm GST. Anything inside that window falls in the normal working day at both ends.

Gulf Standard Time (GST) is used in the UAE and Oman

Other conversions