Timezone conversion
GST to IST Time — Convert Gulf Standard Time to India Standard Time
IST is currently 1 hour and 30 minutes ahead of GST. This offset stays the same all year — neither zone shifts for daylight saving in a way that changes it.
IST is currently 1 hour and 30 minutes ahead of GST.
Abbreviation disambiguation
Gulf Standard Time is UTC+4, used across the United Arab Emirates and neighbouring Gulf states. Historically the letters GST were also used for Guam Standard Time.
On Clockjumper, IST refers to India Standard Time (UTC+5:30). The same three letters are also used for Israel Standard Time (UTC+2) and Irish Standard Time (UTC+1) — check the city or UTC offset to be sure which is meant.
Interactive converter
12:00PM
Select both cities to see the converted time.
Full GST to IST conversion table
| 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) |
Daylight saving and how the gap changes
The GST → IST offset stays constant across the year — neither zone shifts for daylight saving in a way that changes this gap.
Frequently asked questions
- Is IST ahead of or behind GST right now?
- IST is currently 1 hour and 30 minutes ahead of GST.
- What is the current GST to IST time difference?
- Right now the gap is 1 hour and 30 minutes — IST is 1 hour and 30 minutes ahead of GST.
- Does the GST → IST offset change during the year?
- No. Neither Gulf Standard Time nor India Standard Time shifts for daylight saving in a way that changes this offset — the gap is the same all year.
- Does GST observe daylight saving time?
- No — Gulf Standard Time stays at a fixed UTC offset year-round.
- Does IST observe daylight saving time?
- No — India Standard Time stays at a fixed UTC offset year-round.
- What time is 3 AM GST in IST?
- 3:00 AM GST is 4:30 AM IST.
- What time is 8 AM GST in IST?
- 8:00 AM GST is 9:30 AM IST.
- What time is 9 AM GST in IST?
- 9:00 AM GST is 10:30 AM IST.
- What time is 10 AM GST in IST?
- 10:00 AM GST is 11:30 AM IST.
- What time is 11 AM GST in IST?
- 11:00 AM GST is 12:30 PM IST.
- What time is 12 PM (noon) GST in IST?
- 12:00 PM GST is 1:30 PM IST.
- What time is 2 PM GST in IST?
- 2:00 PM GST is 3:30 PM IST.
- What time is 3 PM GST in IST?
- 3:00 PM GST is 4:30 PM IST.
- What time is 4 PM GST in IST?
- 4:00 PM GST is 5:30 PM IST.
- What time is 5 PM GST in IST?
- 5:00 PM GST is 6:30 PM IST.
- What time is 9 PM GST in IST?
- 9:00 PM GST is 10:30 PM IST.
- What time is 10 PM GST in IST?
- 10:00 PM GST is 11:30 PM IST.
- When is the best time to schedule a call between GST and IST?
- The working-hours overlap (09:00–17:00 in both zones) runs roughly 9:00 AM – 3:30 PM GST (≈ 6 hours and 30 minutes). The midpoint of that window — 12:15 PM GST, 1:45 PM IST — is the safest single slot to propose for a live call.
- What time zone does GST refer to?
- GST refers to Gulf Standard Time (IANA: Asia/Dubai).
- What time zone does IST refer to?
- IST refers to India Standard Time (IANA: Asia/Kolkata).
- Is GST on this page the same as other zones that share the letters "GST"?
- Gulf Standard Time is UTC+4, used across the United Arab Emirates and neighbouring Gulf states. Historically the letters GST were also used for Guam Standard Time.
- Is IST on this page the same as other zones that share the letters "IST"?
- On Clockjumper, IST refers to India Standard Time (UTC+5:30). The same three letters are also used for Israel Standard Time (UTC+2) and Irish Standard Time (UTC+1) — check the city or UTC offset to be sure which is meant.