Asleep
  1. Asleep
  2. Converter
  3. IST to CST

IST to CST converter

CST is 11 hours 30 minutes behind of IST today. IST (India Standard Time) - currently UTC+5:30; CST (Central Standard Time) - currently UTC−6.

The 09:00-18:00 workdays in IST and CST don't overlap at all, so one side always works early or late. Quick answers: 9 AM IST = 9:30 PM CST (previous day), 12 PM IST = 12:30 AM CST, 5 PM IST = 5:30 AM CST.

IST · India Standard Time

UTC+5:30

CST · Central Standard Time

UTC−6

Convert a time

CST
--:--

Working hours side by side

columns: IST hours
PING · 09–18 local MAYBE · 07–09, 18–21 NOT NOW · 21–07Outlined: everyone can be pinged

IST to CST conversion table

ISTCSTVerdict in CST
12 AM · 00:0012:30 PM · 12:30 (previous day)PING
1 AM · 01:001:30 PM · 13:30 (previous day)PING
2 AM · 02:002:30 PM · 14:30 (previous day)PING
3 AM · 03:003:30 PM · 15:30 (previous day)PING
4 AM · 04:004:30 PM · 16:30 (previous day)PING
5 AM · 05:005:30 PM · 17:30 (previous day)PING
6 AM · 06:006:30 PM · 18:30 (previous day)MAYBE
7 AM · 07:007:30 PM · 19:30 (previous day)MAYBE
8 AM · 08:008:30 PM · 20:30 (previous day)MAYBE
9 AM · 09:009:30 PM · 21:30 (previous day)NOT NOW
10 AM · 10:0010:30 PM · 22:30 (previous day)NOT NOW
11 AM · 11:0011:30 PM · 23:30 (previous day)NOT NOW
12 PM · 12:0012:30 AM · 00:30NOT NOW
1 PM · 13:001:30 AM · 01:30NOT NOW
2 PM · 14:002:30 AM · 02:30NOT NOW
3 PM · 15:003:30 AM · 03:30NOT NOW
4 PM · 16:004:30 AM · 04:30NOT NOW
5 PM · 17:005:30 AM · 05:30NOT NOW
6 PM · 18:006:30 AM · 06:30NOT NOW
7 PM · 19:007:30 AM · 07:30MAYBE
8 PM · 20:008:30 AM · 08:30MAYBE
9 PM · 21:009:30 AM · 09:30PING
10 PM · 22:0010:30 AM · 10:30PING
11 PM · 23:0011:30 AM · 11:30PING

Cities on IST

Asia/Kolkata
MumbaiDelhiBangaloreHyderabadAhmedabadChennai

Cities on CST

America/Chicago
ChicagoHoustonSan AntonioDallasFort WorthAustin

Other conversions

All converters
CST → ISTIST → ESTIST → EDTIST → PSTIST → PDTIST → CDTIST → MSTIST → GMTIST → UTCIST → BSTIST → CET

Questions

What is the time difference between IST and CST?

CST (Central Standard Time) is 11 hours 30 minutes behind of IST (India Standard Time) right now: UTC+5:30 versus UTC−6.

What is 9 AM IST in CST?

9:00 AM IST is 9:30 PM CST (previous day).

What is 5 PM IST in CST?

5:00 PM IST is 5:30 AM CST.

Does daylight saving change the IST–CST difference?

IST has no daylight saving; it stays UTC+5:30 all year. Chicago switches between CST and CDT; next change Sunday, 14 March 2027 (UTC−6 → UTC−5).