IST to GST Converter

GST is 1h 30m behind IST. When it's 12:00 PM IST, it's 10:30 AM GST.

From

IST · UTC+5:30

9:39:51AM

India Standard Time

e.g. Kolkata

To

GST · UTC+4

8:09:51AM

Gulf Standard Time

e.g. Dubai

Open in World ClockGST → IST
9:00 AM IST=7:30 AM GST
12:00 PM IST=10:30 AM GST
5:00 PM IST=3:30 PM GST

Hourly conversion (IST → GST)

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

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 IST conversions

Frequently asked questions

What is the time difference between IST and GST?
GST is 1h 30m behind IST. IST is UTC+5:30 and GST is UTC+4.
What is 12:00 PM IST in GST?
12:00 PM IST is 10:30 AM GST.
Does IST change for daylight saving time?
IST here is India Standard Time (UTC+5:30). It can also mean Irish Standard Time or Israel Standard Time.