IST to CST Converter – India Standard Time to Central Standard Time
CST is 11 hours 30 minutes behind IST. IST (India Standard Time) is UTC+5:30 all year, while CST (Central Standard Time) is UTC-6, switching to CDT (UTC-5) during daylight saving. The live clocks below show the current time in both zones, updated every second.
IST to CST Conversion Table (Hour by Hour)
Standard-time conversion from India Standard Time to Central Standard Time. During daylight saving periods the offset shifts by one hour - the live clocks above always show the correct current time.
| IST (UTC+5:30) | CST (UTC-6) |
|---|---|
| 12:00 AM | 12:30 PM (previous day) |
| 1:00 AM | 1:30 PM (previous day) |
| 2:00 AM | 2:30 PM (previous day) |
| 3:00 AM | 3:30 PM (previous day) |
| 4:00 AM | 4:30 PM (previous day) |
| 5:00 AM | 5:30 PM (previous day) |
| 6:00 AM | 6:30 PM (previous day) |
| 7:00 AM | 7:30 PM (previous day) |
| 8:00 AM | 8:30 PM (previous day) |
| 9:00 AM | 9:30 PM (previous day) |
| 10:00 AM | 10:30 PM (previous day) |
| 11:00 AM | 11:30 PM (previous day) |
| 12:00 PM | 12:30 AM |
| 1:00 PM | 1:30 AM |
| 2:00 PM | 2:30 AM |
| 3:00 PM | 3:30 AM |
| 4:00 PM | 4:30 AM |
| 5:00 PM | 5:30 AM |
| 6:00 PM | 6:30 AM |
| 7:00 PM | 7:30 AM |
| 8:00 PM | 8:30 AM |
| 9:00 PM | 9:30 AM |
| 10:00 PM | 10:30 AM |
| 11:00 PM | 11:30 AM |
Frequently Asked Questions
What is the time difference between IST and CST?
CST is 11 hours 30 minutes behind IST. IST (India Standard Time) is UTC+5:30 and CST (Central Standard Time) is UTC-6.
How do I convert IST to CST?
Take your time in IST and subtract 11.5 hours and minutes as shown in the table above. For example, 9:00 AM IST is 9:30 PM in CST. The live clocks at the top of this page always show the current conversion.
Does daylight saving time affect IST to CST conversion?
Yes. CST switches to CDT (UTC-5) in summer, so the gap between the two zones changes during DST periods. The live clocks on this page use the IANA timezone database and always reflect the correct current offset automatically.
What is the best time for a meeting between IST and CST?
Look for overlap between 9:00 AM-6:00 PM working hours in both zones using the conversion table above. CST is 11 hours 30 minutes behind IST, so overlap is limited - early morning in one zone and evening in the other usually works best.