Skip to main content

Convert GST to IST

Gulf Standard Time (GST) to India Standard Time (IST)

When it's 12:00 PM GST, it's 1:30 PM IST

UTC+4 UTC+5:30 +1:30 hours

Interactive Converter

Pick any time and date to convert between GST and IST.

GST to IST Conversion Table

Full 24-hour comparison. Business hours (9 AM -- 6 PM) are highlighted.

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

Best Meeting Window

Top meeting times for teams in GST and IST (9 AM -- 6 PM work hours, 1-hour meeting).

12a
3a
6a
9a
12p
3p
6p
9p
GST GMT+4
IST GMT+5:30
Overlap
Everyone available
Most available
Some overlap
Outside work hours
1 1:00 PM -- 2:00 PM GST
GST: 1:00 PM IST: 2:00 PM

All members within working hours. Everyone in mid-day range.

9.7 / 10
2 12:00 PM -- 1:00 PM GST
GST: 12:00 PM IST: 1:00 PM

All members within working hours. Everyone in mid-day range.

9.3 / 10
3 2:00 PM -- 3:00 PM GST
GST: 2:00 PM IST: 3:00 PM

All members within working hours. Everyone in mid-day range.

9.3 / 10

Try the full Meeting Finder with custom work hours →

Time Difference & DST

IST is 1 hour 30 minutes ahead of GST. GST is at UTC+4 and IST is at UTC+5:30.

Neither GST nor IST has an upcoming DST transition within the next 12 months.

The conversion table above reflects the current DST state at build time. Use the interactive converter for live, date-specific conversions.

Major Cities

Gulf Standard Time (GST)

  • Dubai
  • Abu Dhabi
  • Sharjah

India Standard Time (IST)

  • Mumbai
  • Delhi
  • Bangalore

Related Conversions

Popular Conversions

Related Meeting Pages

Find the best meeting times for multi-zone teams.