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DateAlmanac

What is GST in IST?

India Standard Time is 1 hour 30 minutes ahead

Gulf Standard Time is on UTC+4:00 and India Standard Time is on UTC+5:30 right now. That gap holds all year, because both zones change their clocks together.

Time in Dubai
4:53:04 PM
Time in New Delhi
6:23:04 PM
Difference
+1:30 h
Next clock change
Neither zone

Convert a time

IST — India Standard Time

5:30 pm

IST, Fri

Daylight saving

Gulf Standard Time

No clock changes

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

India Standard Time

No clock changes

India Standard Time stays on IST all year, so its offset from UTC never moves.

GST to IST conversion table

Every hour of Friday, September 25, 2026, converted from Gulf Standard Time to India Standard Time. 1 of the 24 hours fall on a different calendar day in New Delhi, which is marked.

12:00 am GST
1:30 am IST
1:00 am GST
2:30 am IST
2:00 am GST
3:30 am IST
3:00 am GST
4:30 am IST
4:00 am GST
5:30 am IST
5:00 am GST
6:30 am IST
6:00 am GST
7:30 am IST
7:00 am GST
8:30 am IST
8:00 am GST
9:30 am IST
9:00 am GST
10:30 am IST
10:00 am GST
11:30 am IST
11:00 am GST
12:30 pm IST
12:00 pm GST
1:30 pm IST
1:00 pm GST
2:30 pm IST
2:00 pm GST
3:30 pm IST
3:00 pm GST
4:30 pm IST
4:00 pm GST
5:30 pm IST
5:00 pm GST
6:30 pm IST
6:00 pm GST
7:30 pm IST
7:00 pm GST
8:30 pm IST
8:00 pm GST
9:30 pm IST
9:00 pm GST
10:30 pm IST
10:00 pm GST
11:30 pm IST
11:00 pm GST
12:30 am IST+1 day

Scheduling between the two

Working hours overlap from 9:00 am to 5:00 pm GST, which is 10:30 am to 6:30 pm IST. Anything inside that window falls in the normal working day at both ends.

A note on IST: it can also mean Israel Standard Time (UTC+2) and Irish Standard Time (UTC+1). This page means India Standard Time, which is what almost all searches for IST want.

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

India Standard Time (IST) is used in all of India and Sri Lanka, on a single UTC+5:30 offset with no daylight saving

Other conversions