IST to CST Converter
Convert time between India Standard Time (IST) and Central Time (CST/CDT).
Convert a specific time
- IndiaIST, UTC+5:30
- Eastern Time – New YorkEST, UTC-5
- Central Time – ChicagoCST, UTC-6
- Mountain Time – DenverMST, UTC-7
- Arizona – PhoenixMST, UTC-7
- Pacific Time – Los AngelesPST, UTC-8
- Mexico CityCST, UTC-6
- Saskatchewan – ReginaCST, UTC-6
- UTC / GMTUTC, UTC+0
- United Kingdom – LondonGMT, UTC+0
- Central Europe – Paris, BerlinCET, UTC+1
- Gulf – DubaiGST, UTC+4
- SingaporeSGT, UTC+8
- Japan – TokyoJST, UTC+9
- Australia Eastern – SydneyAEDT, UTC+11
- EST (always UTC-5)Fixed offset, no DST
- CST (always UTC-6)Fixed offset, no DST
- MST (always UTC-7)Fixed offset, no DST
- PST (always UTC-8)Fixed offset, no DST
- IndiaIST, UTC+5:30
- Eastern Time – New YorkEST, UTC-5
- Central Time – ChicagoCST, UTC-6
- Mountain Time – DenverMST, UTC-7
- Arizona – PhoenixMST, UTC-7
- Pacific Time – Los AngelesPST, UTC-8
- Mexico CityCST, UTC-6
- Saskatchewan – ReginaCST, UTC-6
- UTC / GMTUTC, UTC+0
- United Kingdom – LondonGMT, UTC+0
- Central Europe – Paris, BerlinCET, UTC+1
- Gulf – DubaiGST, UTC+4
- SingaporeSGT, UTC+8
- Japan – TokyoJST, UTC+9
- Australia Eastern – SydneyAEDT, UTC+11
- EST (always UTC-5)Fixed offset, no DST
- CST (always UTC-6)Fixed offset, no DST
- MST (always UTC-7)Fixed offset, no DST
- PST (always UTC-8)Fixed offset, no DST
Time Difference
India Standard Time is 11 hours 30 minutes ahead of Central Time right now.
- Now until Mar 14, 2027: India Standard Time is 11 hours 30 minutes ahead of Central Time (IST → CST).
- From Mar 14, 2027: India Standard Time is 10 hours 30 minutes ahead of Central Time (IST → CDT).
Central Time is on CST right now
Best time to call
Convenient overlapping hours on Tuesday, November 3, 2026.
| IST (India Standard Time) | CST (Central Time) |
|---|---|
| 8:30 PM | 9:00 AM |
No 9 AM–5 PM overlap: suggestions are within working hours on one side and between 7 AM and 10 PM on the other.
Convert another time zone Plan a meeting across IST and CSTIST to CST conversion table
For Wednesday, November 4, 2026 in India Standard Time.
| IST | CST |
|---|---|
| 12:00 AM | 12:30 PM(previous day) |
| 1:00 AM | 1:30 PM(previous day) |
| 2:00 AM | 2:30 PM(previous day) |
| 3:00 AM | 3:30 PM(previous day) |
| 4:00 AM | 4:30 PM(previous day) |
| 5:00 AM | 5:30 PM(previous day) |
| 6:00 AM | 6:30 PM(previous day) |
| 7:00 AM | 7:30 PM(previous day) |
| 8:00 AM | 8:30 PM(previous day) |
| 9:00 AM | 9:30 PM(previous day) |
| 10:00 AM | 10:30 PM(previous day) |
| 11:00 AM | 11:30 PM(previous day) |
| 12:00 PM | 12:30 AM |
| 1:00 PM | 1:30 AM |
| 2:00 PM | 2:30 AM |
| 3:00 PM | 3:30 AM |
| 4:00 PM | 4:30 AM |
| 5:00 PM | 5:30 AM |
| 6:00 PM | 6:30 AM |
| 7:00 PM | 7:30 AM |
| 8:00 PM | 8:30 AM |
| 9:00 PM | 9:30 AM |
| 10:00 PM | 10:30 AM |
| 11:00 PM | 11:30 AM |
About these time zones
India Standard Time (IST)
India Standard Time (IST) is UTC+5:30 and is used across all of India as a single time zone. India does not observe daylight saving time, so IST never changes — but its difference from places that do (like US Eastern Time) changes twice a year.
Central Standard Time (CST)
Central Standard Time (CST) is UTC-6. Most of the central United States and Manitoba use CST only in winter and switch to Central Daylight Time (CDT, UTC-5) from the second Sunday in March to the first Sunday in November. Most of Saskatchewan, most of Mexico and much of Central America stay on CST all year.
IST to CST FAQs
What time is it in CST when it is 9 AM IST?
On Wednesday, November 4, 2026, 9:00 AM IST is 9:30 PM CST (previous day) in Central Time.
How many hours ahead is IST from CST?
It depends on the time of year because of daylight saving time. Now until Mar 14, 2027: India Standard Time is 11 hours 30 minutes ahead of Central Time (IST → CST). From Mar 14, 2027: India Standard Time is 10 hours 30 minutes ahead of Central Time (IST → CDT).
Should I use CST or CDT?
Central Time is on CST (UTC-6) on Tuesday, November 3, 2026. Many people write “CST” all year, but strictly CST means Central Standard Time (always UTC-6). This converter follows the real local time in Central Time, including daylight saving time.
What is the best time for a call between IST and CST?
On Tuesday, November 3, 2026, good options are 8:30 PM IST (9:00 AM CST). There is no overlap of 9 AM–5 PM working hours, so these fall early or late for one side.
Does IST change for daylight saving time?
No. IST stays at UTC+5:30 all year.
Does CST change for daylight saving time?
The region changes: Central Time switches between CST and CDT, so conversions depend on the date. CST itself always means UTC-6.