CST to IST converter
India Standard Time is 10 hours 30 minutes ahead of Central Time in northern summer and 11 hours 30 minutes ahead in winter.
—
CST to IST time table
Set each side's working hours to see when both are at work.
Working hours count Monday to Friday only. Public holidays are not included.
| Central Time | IST in summer | IST in winter |
|---|---|---|
| 12:00 AM CST | 10:30 AM | 11:30 AM |
| 1:00 AM CST | 11:30 AM | 12:30 PM |
| 2:00 AM CST | 12:30 PM | 1:30 PM |
| 3:00 AM CST | 1:30 PM | 2:30 PM |
| 4:00 AM CST | 2:30 PM | 3:30 PM |
| 5:00 AM CST | 3:30 PM | 4:30 PM |
| 6:00 AM CST | 4:30 PM | 5:30 PM |
| 7:00 AM CST | 5:30 PM | 6:30 PM |
| 8:00 AM CST | 6:30 PM | 7:30 PM |
| 9:00 AM CST | 7:30 PM | 8:30 PM |
| 10:00 AM CST | 8:30 PM | 9:30 PM |
| 11:00 AM CST | 9:30 PM | 10:30 PM |
| 12:00 PM CST | 10:30 PM | 11:30 PM |
| 1:00 PM CST | 11:30 PM | 12:30 AM (next day) |
| 2:00 PM CST | 12:30 AM (next day) | 1:30 AM (next day) |
| 3:00 PM CST | 1:30 AM (next day) | 2:30 AM (next day) |
| 4:00 PM CST | 2:30 AM (next day) | 3:30 AM (next day) |
| 5:00 PM CST | 3:30 AM (next day) | 4:30 AM (next day) |
| 6:00 PM CST | 4:30 AM (next day) | 5:30 AM (next day) |
| 7:00 PM CST | 5:30 AM (next day) | 6:30 AM (next day) |
| 8:00 PM CST | 6:30 AM (next day) | 7:30 AM (next day) |
| 9:00 PM CST | 7:30 AM (next day) | 8:30 AM (next day) |
| 10:00 PM CST | 8:30 AM (next day) | 9:30 AM (next day) |
| 11:00 PM CST | 9:30 AM (next day) | 10:30 AM (next day) |
Which CST and which IST?
Central Time is CST (UTC−6) in winter and CDT (UTC−5) in summer. This is US Central Time, not China Standard Time.
IST here is India Standard Time (UTC+5:30), which has no daylight saving. Not Irish or Israel Standard Time.
Times are worked out from your device clock and your browser's time zone database, which follows each country's clock-change rules.
Questions
What time is 3 PM CST in IST?
3:00 PM Central Time is 1:30 AM the next day India Standard Time in northern summer and 2:30 AM the next day in winter, because only one side changes its clocks, or they change on different dates. For any other hour, such as 10 AM or 9 PM CST, read the hour-by-hour table above.
Is CST the same as Central Time?
Not always. Central Time is CST (UTC−6) in winter and CDT (UTC−5) in summer. This is US Central Time, not China Standard Time. This page uses Central Time as Chicago lives it, and says which one applies on the date you pick; choose "CST, fixed UTC−6" to use the fixed offset instead.
Does IST change for daylight saving?
IST here is India Standard Time (UTC+5:30), which has no daylight saving. Not Irish or Israel Standard Time.
More time zone pairs
Use these tools with no internet: install the Time app.
Updated