CDT to IST
Converting a fixed time. America/Chicago → Asia/Kolkata
Clocks go back 1 hour on Sunday, 1st November 2026, at 1:59 am local time (1:00 am after the change).
Clocks here do not change — this zone stays on the same offset all year.
Convert a specific time minutes work, not just whole hours
Hour by hour
| CDT | IST | 24h | Good to call? |
|---|---|---|---|
| 12am | 10am | 00:00 → 10:30 | asleep in CDT |
| 1am | 11am | 01:00 → 11:30 | asleep in CDT |
| 2am | 12pm | 02:00 → 12:30 | asleep in CDT |
| 3am | 1pm | 03:00 → 13:30 | asleep in CDT |
| 4am | 2pm | 04:00 → 14:30 | asleep in CDT |
| 5am | 3pm | 05:00 → 15:30 | asleep in CDT |
| 6am | 4pm | 06:00 → 16:30 | asleep in CDT |
| 7am | 5pm | 07:00 → 17:30 | awake, not at work |
| 8am | 6pm | 08:00 → 18:30 | awake, not at work |
| 9am | 7pm | 09:00 → 19:30 | awake, not at work |
| 10am | 8pm | 10:00 → 20:30 | awake, not at work |
| 11am | 9pm | 11:00 → 21:30 | awake, not at work |
| 12pm | 10pm | 12:00 → 22:30 | asleep in IST |
| 1pm | 11pm | 13:00 → 23:30 | asleep in IST |
| 2pm | 12am Thu | 14:00 → 00:30 | asleep in IST |
| 3pm | 1am Thu | 15:00 → 01:30 | asleep in IST |
| 4pm | 2am Thu | 16:00 → 02:30 | asleep in IST |
| 5pm | 3am Thu | 17:00 → 03:30 | asleep in IST |
| 6pm | 4am Thu | 18:00 → 04:30 | asleep in IST |
| 7pm | 5am Thu | 19:00 → 05:30 | asleep in IST |
| 8pm | 6am Thu | 20:00 → 06:30 | asleep in IST |
| 9pm now | 7am Thu | 21:00 → 07:30 | awake, not at work |
| 10pm | 8am Thu | 22:00 → 08:30 | asleep in CDT |
| 11pm | 9am Thu | 23:00 → 09:30 | asleep in CDT |
Call times
There is no hour when both places are inside normal working hours. The least bad slot is usually early morning at the western end.
10am
11am
12pm
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Questions people ask
What time is it in IST when it is 3:30 pm in CDT?
2:00 am in IST the next day.
How many hours ahead is IST of CDT?
IST is 10 hours 30 minutes ahead CDT. That gap is not fixed: it changes when either place starts or ends daylight saving. The table on this page is recalculated for today, so it is already correct for the current season.
What is the best time to call between CDT and IST?
There is no hour when both places are inside normal working hours. The least bad slot is usually early morning at the western end.
When does the difference between CDT and IST change?
CDT: Clocks go back 1 hour on Sunday, 1st November 2026, at 1:59 am local time (1:00 am after the change). IST does not change its clocks, so the gap shifts by an hour on that date.