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IST to CST converter
India Standard Time
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Central Time
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Central Time is 10 hours 30 minutes behind India Standard Time for most of the year, and 11 hours 30 minutes behind for part of it, because the two change their clocks on different dates (or only one of them changes at all).
When does the difference change?
In 2026:
- January 1 to March 7: Central Time is 11 hours 30 minutes behind India Standard Time
- March 8 to October 31: Central Time is 10 hours 30 minutes behind India Standard Time
- November 1 to December 31: Central Time is 11 hours 30 minutes behind India Standard Time
Questions
What time is 9 AM IST in CST?
For most of the year, 9 AM India Standard Time is 10:30 PM the day before Central Time. For part of the year it is 9:30 PM the day before, because of daylight saving time.
How many hours ahead or behind is CST from IST?
Central Time is 10 hours 30 minutes behind India Standard Time for most of the year, and 11 hours 30 minutes behind for part of it, because the two change their clocks on different dates (or only one of them changes at all).
Does the IST to CST difference change?
Yes. It changes 2 times in 2026 because of daylight saving time.
About these time zones
IST to CST, hour by hour
| India Standard Time | Central Time |
|---|---|
| 12 AM | 1:30 PM (previous day) |
| 1 AM | 2:30 PM (previous day) |
| 2 AM | 3:30 PM (previous day) |
| 3 AM | 4:30 PM (previous day) |
| 4 AM | 5:30 PM (previous day) |
| 5 AM | 6:30 PM (previous day) |
| 6 AM | 7:30 PM (previous day) |
| 7 AM | 8:30 PM (previous day) |
| 8 AM | 9:30 PM (previous day) |
| 9 AM | 10:30 PM (previous day) |
| 10 AM | 11:30 PM (previous day) |
| 11 AM | 12:30 AM |
| 12 PM | 1:30 AM |
| 1 PM | 2:30 AM |
| 2 PM | 3:30 AM |
| 3 PM | 4:30 AM |
| 4 PM | 5:30 AM |
| 5 PM | 6:30 AM |
| 6 PM | 7:30 AM |
| 7 PM | 8:30 AM |
| 8 PM | 9:30 AM |
| 9 PM | 10:30 AM |
| 10 PM | 11:30 AM |
| 11 PM | 12:30 PM |
Based on the clocks on Monday, October 12, 2026. Use the converter above for another date.