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Convert IST to GST

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

When it's 12:00 PM IST, it's 10:30 AM GST

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

Interactive Converter

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

IST to GST Conversion Table

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

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

Best Meeting Window

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

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

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

9.3 / 10
2 3:00 PM -- 4:00 PM IST
IST: 3:00 PM GST: 1:00 PM

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

9.3 / 10
3 1:00 PM -- 2:00 PM IST
IST: 1:00 PM GST: 11:00 AM

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

8.9 / 10

Try the full Meeting Finder with custom work hours →

Time Difference & DST

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

Neither IST nor GST 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

India Standard Time (IST)

  • Mumbai
  • Delhi
  • Bangalore

Gulf Standard Time (GST)

  • Dubai
  • Abu Dhabi
  • Sharjah

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