IST to CST Time Converter
CST is 10 hours 30 minutes behind IST right now. 9:00 AM in IST is 10:30 PM in CST (the day before).
Time now: IST and CST
CST is 10 hours 30 minutes behind IST right now. The gap is not fixed: it is 11 hours 30 minutes at some times of the year and 10 hours 30 minutes at others, because at least one of them changes its clocks for daylight saving time.
IST to CST conversion table
Every hour of the day, using today's time difference.
| IST | CST |
|---|---|
| 12:00 AM | 1:30 PMprevious day |
| 1:00 AM | 2:30 PMprevious day |
| 2:00 AM | 3:30 PMprevious day |
| 3:00 AM | 4:30 PMprevious day |
| 4:00 AM | 5:30 PMprevious day |
| 5:00 AM | 6:30 PMprevious day |
| 6:00 AM | 7:30 PMprevious day |
| 7:00 AM | 8:30 PMprevious day |
| 8:00 AM | 9:30 PMprevious day |
| 9:00 AM | 10:30 PMprevious day |
| 10:00 AM | 11:30 PMprevious day |
| 11:00 AM | 12:30 AM |
| 12:00 PM | 1:30 AM |
| 1:00 PM | 2:30 AM |
| 2:00 PM | 3:30 AM |
| 3:00 PM | 4:30 AM |
| 4:00 PM | 5:30 AM |
| 5:00 PM | 6:30 AM |
| 6:00 PM | 7:30 AM |
| 7:00 PM | 8:30 AM |
| 8:00 PM | 9:30 AM |
| 9:00 PM | 10:30 AM |
| 10:00 PM | 11:30 AM |
| 11:00 PM | 12:30 PM |
Best time to meet between IST and CST
There is no overlap between 9 AM and 6 PM in both places.
If both sides can be flexible (7 AM – 10 PM):
- 7:00 AM – 9:00 AM IST = 8:30 PM – 10:30 PM CST
- 6:00 PM – 10:00 PM IST = 7:30 AM – 11:30 AM CST
The time difference changes during the year because of daylight saving time, so these windows shift by an hour at other times.
Questions & answers
What is the time difference between IST and CST?
CST is 10 hours 30 minutes behind IST right now. The gap is not fixed: it is 11 hours 30 minutes at some times of the year and 10 hours 30 minutes at others, because at least one of them changes its clocks for daylight saving time.
How do I convert IST to CST?
Subtract 10 hours 30 minutes from the IST time to get the CST time (at today's difference). 9:00 AM in IST is 10:30 PM in CST (the day before). Or use the converter above and pick any date and time.
What is the current time in CST?
It is 7:43 AM in CST on Thursday, October 8 (the converter above shows it live). At the same moment it is 6:13 PM in IST.
What is the best time for a meeting between IST and CST?
The two places have no shared working hours (9 AM – 6 PM). The nearest option is 7:00 AM – 9:00 AM IST = 8:30 PM – 10:30 PM CST.
What does IST mean?
IST here means India Standard Time (UTC+05:30). India does not use daylight saving time. (The letters IST are also used for Irish and Israel time.)
What does CST mean?
Central Time is CST (UTC-06:00) in winter and CDT (UTC-05:00) in summer.