GST to IST Converter
IST is 1 hours and 30 minutes ahead of GST
GST to IST Conversion Table
Green rows indicate standard business hours (9 AM – 5 PM) in IST
| 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 +1d |
Converting Gulf Standard Time to India Standard Time
Gulf Standard Time (GST) and India Standard Time (IST) are separated by a 1 hours and 30 minutes time difference. IST is 1 hours and 30 minutes ahead of GST. GST is UTC+4, used in United Arab Emirates, Oman, while IST is UTC+5:30, used in India, Sri Lanka.
When converting from GST to IST, the key reference points to remember are: 9:00 AM GST equals 10:30 AM IST, 12:00 PM noon GST equals 1:30 PM IST, and 5:00 PM GST equals 6:30 PM IST. The conversion table above shows every hour of the day mapped between these two time zones.
Scheduling Across GST and IST
For professionals scheduling meetings between GST and IST, finding overlapping business hours is essential. Standard business hours are typically 9:00 AM to 5:00 PM in each time zone. Given the 1 hours and 30 minutes difference, the window of overlap may be limited. Use the highlighted working hours in the conversion table above to quickly identify suitable meeting times.
Daylight Saving Time Considerations
GST does not observe Daylight Saving Time, maintaining UTC+4 year-round. IST does not observe DST, staying at UTC+5:30 year-round.