ClockinSync
ClockinSync

CST to IST Time Converter

Central Standard TimeIndia Standard Time

CST = UTC-5IST = UTC+5:30

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

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

CST (Chicago)IST (Mumbai)

No overlap — one side will join outside working hours

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

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

Frequently Asked Questions

What is the difference between cst and ist?
Central Standard Time (cst) is UTC-5 and India Standard Time (ist) is UTC+5:30. The difference between them is 10.5 hours.
Where is cst used?
Central Standard Time (cst) is used in USA and surrounding regions. The IANA timezone identifier is America/Chicago. Note: cst is ambiguous and may refer to other timezones.
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 cst to ist?
Use the interactive converter above. Drag the time slider to any cst time and the ist equivalent updates instantly. You can also type a time like "3pm" or "15:00" in the input bar.

Popular CST conversions

CST → LondonCST → New YorkCST → TokyoCST → DubaiCST → SydneyCST → ParisCST → BerlinCST → SingaporeCST → Los AngelesCST → Toronto

Popular IST conversions

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