GST to IST Converter
Convert time between Gulf Standard Time (GST) and India Standard Time (IST).
Convert a specific time
- IndiaIST, UTC+5:30
- Eastern Time – New YorkEDT, UTC-4
- Central Time – ChicagoCDT, UTC-5
- Mountain Time – DenverMDT, UTC-6
- Arizona – PhoenixMST, UTC-7
- Pacific Time – Los AngelesPDT, UTC-7
- Mexico CityCST, UTC-6
- Saskatchewan – ReginaCST, UTC-6
- UTC / GMTUTC, UTC+0
- United Kingdom – LondonBST, UTC+1
- Central Europe – Paris, BerlinCEST, UTC+2
- Gulf – DubaiGST, UTC+4
- SingaporeSGT, UTC+8
- Japan – TokyoJST, UTC+9
- Australia Eastern – SydneyAEST, UTC+10
- EST (always UTC-5)Fixed offset, no DST
- CST (always UTC-6)Fixed offset, no DST
- MST (always UTC-7)Fixed offset, no DST
- PST (always UTC-8)Fixed offset, no DST
- IndiaIST, UTC+5:30
- Eastern Time – New YorkEDT, UTC-4
- Central Time – ChicagoCDT, UTC-5
- Mountain Time – DenverMDT, UTC-6
- Arizona – PhoenixMST, UTC-7
- Pacific Time – Los AngelesPDT, UTC-7
- Mexico CityCST, UTC-6
- Saskatchewan – ReginaCST, UTC-6
- UTC / GMTUTC, UTC+0
- United Kingdom – LondonBST, UTC+1
- Central Europe – Paris, BerlinCEST, UTC+2
- Gulf – DubaiGST, UTC+4
- SingaporeSGT, UTC+8
- Japan – TokyoJST, UTC+9
- Australia Eastern – SydneyAEST, UTC+10
- EST (always UTC-5)Fixed offset, no DST
- CST (always UTC-6)Fixed offset, no DST
- MST (always UTC-7)Fixed offset, no DST
- PST (always UTC-8)Fixed offset, no DST
Time Difference
Gulf Standard Time is 1 hour 30 minutes behind India Standard Time right now.
- All year: Gulf Standard Time is 1 hour 30 minutes behind India Standard Time (GST → IST).
Best time to call
Convenient overlapping hours on Saturday, September 19, 2026.
| GST (Gulf Standard Time) | IST (India Standard Time) |
|---|---|
| 9:00 AM | 10:30 AM |
| 10:00 AM | 11:30 AM |
| 11:00 AM | 12:30 PM |
| 12:00 PM | 1:30 PM |
These hours fall within 9 AM–5 PM in both places.
Convert another time zone Plan a meeting across GST and ISTGST to IST conversion table
For Saturday, September 19, 2026 in Gulf Standard Time.
| 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(next day) |
About these time zones
Gulf Standard Time (GST)
Gulf Standard Time (GST) is UTC+4 all year, used in the United Arab Emirates and Oman. Neither country observes daylight saving time. Saudi Arabia, Qatar, Bahrain and Kuwait are one hour behind on Arabia Standard Time (UTC+3).
India Standard Time (IST)
India Standard Time (IST) is UTC+5:30 and is used across all of India as a single time zone. India does not observe daylight saving time, so IST never changes — but its difference from places that do (like US Eastern Time) changes twice a year.
GST to IST FAQs
What time is it in IST when it is 9 AM GST?
On Saturday, September 19, 2026, 9:00 AM GST is 10:30 AM IST in India Standard Time.
How many hours ahead is GST from IST?
Gulf Standard Time is 1 hour 30 minutes behind India Standard Time (GST vs IST).
What is the best time for a call between GST and IST?
On Saturday, September 19, 2026, good options are 9:00 AM GST (10:30 AM IST), 10:00 AM GST (11:30 AM IST), 11:00 AM GST (12:30 PM IST), 12:00 PM GST (1:30 PM IST). These fall within normal 9 AM–5 PM working hours in both places.
Does GST change for daylight saving time?
No. GST stays at UTC+4 all year.
Does IST change for daylight saving time?
No. IST stays at UTC+5:30 all year.