IST to CST Time Converter
IST is 10 hours 30 minutes ahead of CST right now.
IST UTC+5:30 · CST UTC−5
IST → CST at a glance
| IST | CST |
|---|---|
| 09:00 | 22:30 |
| 12:00 | 01:30 |
| 15:00 | 04:30 |
| 18:00 | 07:30 |
| 21:00 | 10:30 |
IST currently runs on UTC+5:30 and CST on UTC−5, so iST is 10 hours 30 minutes ahead of CST. IST does not observe daylight saving time, and cST is currently on daylight saving (summer) time. Because both cities follow their own clock rules, the 10 hours 30 minutes gap you see today can shift by an hour around the spring and autumn changeovers, which is why this page calculates every value live from the official time zone database instead of a fixed offset. There is no hour today when both offices are inside normal 09:00–18:00 hours, so one side will need to join early or late. Use the planner above to drag across a range, compare more cities, then copy a summary or add the slot straight to Google Calendar.