GST to IST Converter

IST is 1h 30m ahead of GST. When it's 12:00 PM GST, it's 1:30 PM IST.

From

GST · UTC+4

8:09:52AM

Gulf Standard Time

e.g. Dubai

To

IST · UTC+5:30

9:39:52AM

India Standard Time

e.g. Kolkata

Open in World ClockIST → GST
9:00 AM GST=10:30 AM IST
12:00 PM GST=1:30 PM IST
5:00 PM GST=6:30 PM IST

Hourly conversion (GST → IST)

GSTIST
12:00 AM1:30 AM
1:00 AM2:30 AM
2:00 AM3:30 AM
3:00 AM4:30 AM
4:00 AM5:30 AM
5:00 AM6:30 AM
6:00 AM7:30 AM
7:00 AM8:30 AM
8:00 AM9:30 AM
9:00 AM10:30 AM
10:00 AM11:30 AM
11:00 AM12:30 PM
12:00 PM1:30 PM
1:00 PM2:30 PM
2:00 PM3:30 PM
3:00 PM4:30 PM
4:00 PM5:30 PM
5:00 PM6:30 PM
6:00 PM7:30 PM
7:00 PM8:30 PM
8:00 PM9:30 PM
9:00 PM10:30 PM
10:00 PM11:30 PM
11:00 PM12:30 AM(+1 day)

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

IST here is India Standard Time (UTC+5:30). It can also mean Irish Standard Time or Israel Standard Time.

More GST conversions

Frequently asked questions

What is the time difference between GST and IST?
IST is 1h 30m ahead of GST. GST is UTC+4 and IST is UTC+5:30.
What is 12:00 PM GST in IST?
12:00 PM GST is 1:30 PM IST.
Does GST change for daylight saving time?
GST is a fixed offset of UTC+4 and does not itself change for daylight saving time.