What is the time difference between IST and GST?

IST is 1.5 hours behind GST. IST is UTC+5.5 and GST is UTC+4.

What is 12 PM IST in GST?

12 PM IST (noon) is 10:30 AM GST.

What are the best meeting times between IST and GST?

Best overlap hours: 10 AM IST = 8:30 AM GST; 11 AM IST = 9:30 AM GST; 12 PM IST = 10:30 AM GST; 1 PM IST = 11:30 AM GST; 2 PM IST = 12:30 PM GST.

IST to GST Time Converter

India Standard Time → Gulf Standard Time

IST

UTC+5.5

India Standard Time

offset

-1.5h

GST is 1.5h behind

GST

UTC+4

Gulf Standard Time

India Standard Time (IST) is 1.5 hours behind Gulf Standard Time (GST). When it is noon in IST, it is 10:30 AM in GST. This offset is fixed year-round.

Meeting planner tool Reverse: GST to IST

Cities in IST

🇮🇳Mumbai 🇮🇳Delhi 🇮🇳Bangalore 🇮🇳Chennai 🇮🇳Kolkata

Cities in GST

🇦🇪Dubai 🇦🇪Abu Dhabi 🇴🇲Muscat

All 24 Hours — IST to GST

Click any row to see the full detail page. Current hour in IST is highlighted.

Both business hoursPartial overlap

12 AM6 AM12 PM6 PM11 PM

Best Meeting Times — IST & GST

Recommended windows where both IST and GST participants are within working hours (8 AM–6 PM).

ISTGSTRatingDetail page

10 AM

8:30 AM

Best

10 AM →

11 AM

9:30 AM

Best

11 AM →

12 PM

10:30 AM

Best

12 PM →

1 PM

11:30 AM

Best

1 PM →

2 PM

12:30 PM

Best

2 PM →

Tip: When scheduling between IST and GST, aim for the “Best” windows above. These times keep both parties within normal working hours, avoiding early-morning or late-evening fatigue.