When it's 9:00 am in New Delhi, it's 10:30 pm the day before in Chicago (9:30 pm the day before from November to March). Your working days don't overlap at all, so someone starts early or stays late for every call.
Convert India Standard Time (IST) to Central Standard Time (CST) for any date and time.
Central Time is 10 hours 30 minutes behind India Standard Time from March to November, and 11 hours 30 minutes behind the rest of the year.
Right now IST is UTC+5:30 and Central Time is on CST (UTC−6). Central Time switches to daylight saving time on 14 March 2027.
9:00 am to 5:00 pm IST is 9:30 pm CST the day before to 5:30 am CST.
India Standard TimeReference
India
Wed, Nov 4
Central Time
US, Canada & Mexico
Tue, Nov 3Previous day
No shared working hours on Wed, Nov 4. Closest fit: 8:00 PM–9:00 PM in India Standard Time, when 1 of 2 are at work and the rest are nearest their day.
Share a booking link insteadWorking hours: 9:00 AM–5:00 PM, Monday to FridayClosest fit
Every hour of the day in IST, converted to CST. Hatched cells are working hours (9:00 am to 5:00 pm); rows with the accent bar are working hours in both zones.
| IST | CSTUntil 14 March 2027 | CDTFrom 14 March 2027 |
|---|---|---|
| 12:00 am IST | 12:30 pm CST(day before) | 1:30 pm CDT(day before) |
| 1:00 am IST | 1:30 pm CST(day before) | 2:30 pm CDT(day before) |
| 2:00 am IST | 2:30 pm CST(day before) | 3:30 pm CDT(day before) |
| 3:00 am IST | 3:30 pm CST(day before) | 4:30 pm CDT(day before) |
| 4:00 am IST | 4:30 pm CST(day before) | 5:30 pm CDT(day before) |
| 5:00 am IST | 5:30 pm CST(day before) | 6:30 pm CDT(day before) |
| 6:00 am IST | 6:30 pm CST(day before) | 7:30 pm CDT(day before) |
| 7:00 am IST | 7:30 pm CST(day before) | 8:30 pm CDT(day before) |
| 8:00 am IST | 8:30 pm CST(day before) | 9:30 pm CDT(day before) |
| 9:00 am IST | 9:30 pm CST(day before) | 10:30 pm CDT(day before) |
| 10:00 am IST | 10:30 pm CST(day before) | 11:30 pm CDT(day before) |
| 11:00 am IST | 11:30 pm CST(day before) | 12:30 am CDT |
| 12:00 pm IST | 12:30 am CST | 1:30 am CDT |
| 1:00 pm IST | 1:30 am CST | 2:30 am CDT |
| 2:00 pm IST | 2:30 am CST | 3:30 am CDT |
| 3:00 pm IST | 3:30 am CST | 4:30 am CDT |
| 4:00 pm IST | 4:30 am CST | 5:30 am CDT |
| 5:00 pm IST | 5:30 am CST | 6:30 am CDT |
| 6:00 pm IST | 6:30 am CST | 7:30 am CDT |
| 7:00 pm IST | 7:30 am CST | 8:30 am CDT |
| 8:00 pm IST | 8:30 am CST | 9:30 am CDT |
| 9:00 pm IST | 9:30 am CST | 10:30 am CDT |
| 10:00 pm IST | 10:30 am CST | 11:30 am CDT |
| 11:00 pm IST | 11:30 am CST | 12:30 pm CDT |
A 9-to-5 working day in IST and one in CST don't overlap. The closest fit is 4:00 pm IST (4:30 am CST), when one of you starts early or stays late.
India Standard Time is UTC+5:30. IST is also used for Irish Standard Time (UTC+1, Ireland's summer time) and Israel Standard Time (UTC+2). This page converts India Standard Time.
All of India, with no daylight saving time. Sri Lanka uses the same offset.
Central Standard Time is UTC−6. CST is also used for China Standard Time (UTC+8) and Cuba Standard Time (UTC−5). This page converts North American Central Time.
Texas, Illinois, Minnesota, Louisiana and most of the Midwest and South, plus Manitoba in Canada. Saskatchewan and most of Mexico stay on CST all year. CT is the short form for the whole zone.