ClockinSync
ClockinSync

GST to IST Time Converter

Gulf Standard TimeIndia Standard Time

GST = UTC+4IST = UTC+5:30

⚠️ IST is ambiguous — on this page it means India Standard Time. It also refers to:

GST (Dubai)IST (Mumbai)

7h of business hours overlap daily (09:00–17:00)

GST (Dubai)
IST (Mumbai)
00:00
01:30
01:00
02:30
02:00
03:30
03:00
04:30
04:00
05:30
05:00
06:30
06:00
07:30
07:00
08:30
08:00
09:30Working
09:00Working
10:30Working
10:00Working
11:30Working
11:00Working
12:30Working
12:00Working
13:30Working
13:00Working
14:30Working
14:00Working
15:30Working
15:00Working
16:30Working
16:00Working
17:30off
17:00
18:30
18:00
19:30
19:00
20:30
20:00
21:30
21:00
22:30
22:00
23:30
23:00
00:30+1d

Working hours: 09:00–17:00 local. Green = both working. Purple = one side only.

Frequently Asked Questions

What is the difference between gst and ist?
Gulf Standard Time (gst) is UTC+4 and India Standard Time (ist) is UTC+5:30. The difference between them is 1.5 hours.
Where is gst used?
Gulf Standard Time (gst) is used in United Arab Emirates and surrounding regions. The IANA timezone identifier is Asia/Dubai.
Where is ist used?
India Standard Time (ist) is used in India and surrounding regions. The IANA timezone identifier is Asia/Kolkata. Note: ist is ambiguous and may refer to other timezones.
How do I convert gst to ist?
Use the interactive converter above. Drag the time slider to any gst time and the ist equivalent updates instantly. You can also type a time like "3pm" or "15:00" in the input bar.

Popular GST conversions

GST → LondonGST → New YorkGST → TokyoGST → SydneyGST → ParisGST → BerlinGST → SingaporeGST → Los AngelesGST → TorontoGST → Mumbai

Popular IST conversions

London → ISTNew York → ISTTokyo → ISTDubai → ISTSydney → ISTParis → ISTBerlin → ISTSingapore → ISTLos Angeles → ISTToronto → IST