World Timezones

CST to IST Converter

Compare IST to CST instead

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Offset

10.5 hours

Central Time (CST) is currently behind India Standard Time (IST).

CST: UTC-5

IST: UTC+5:30

Central Time is currently observing daylight saving time; India Standard Time is not.

When to schedule

Standard business hours (9 AM–5 PM, Mon–Fri) in Central Time and India Standard Time don't overlap on the same weekday. India Standard Time is 11 hours ahead of Central Time.

Realistic options: hand off asynchronously, or stretch one side by an hour to catch the other team at the start or end of their day.

This window may shift by an hour during daylight saving time.

About these zones

Central Time is also known as CST, or CDT.

India Standard Time is also known as IST.

Central Time and India Standard Time are approximately 8,050 miles apart.

Quick reference

Full 24-hour conversion table.

CSTISTDay
12:00 am10:30 amSame day
1:00 am11:30 amSame day
2:00 am12:30 pmSame day
3:00 am1:30 pmSame day
4:00 am2:30 pmSame day
5:00 am3:30 pmSame day
6:00 am4:30 pmSame day
7:00 am5:30 pmSame day
8:00 am6:30 pmSame day
9:00 am7:30 pmSame day
10:00 am8:30 pmSame day
11:00 am9:30 pmSame day
12:00 pm10:30 pmSame day
1:00 pm11:30 pmSame day
2:00 pm12:30 am+1 day
3:00 pm1:30 am+1 day
4:00 pm2:30 am+1 day
5:00 pm3:30 am+1 day
6:00 pm4:30 am+1 day
7:00 pm5:30 am+1 day
8:00 pm6:30 am+1 day
9:00 pm7:30 am+1 day
10:00 pm8:30 am+1 day
11:00 pm9:30 am+1 day

Daylight saving time

Central Time observes daylight saving time; India Standard Time does not. The offset between the two zones changes when Central Time transitions: on Sunday, November 1, 2026, clocks fall back from CDT to CST.

Daylight today

Central Time
Sunrise
5:22 AM
Sunset
8:16 PM
Day length
14h 54m
India Standard Time
Sunrise
6:02 AM
Sunset
7:11 PM
Day length
13h 9m

Daylight overlap: 3h 20m — 5:22 AM–8:41 AM in Central Time (3:52 PM–7:11 PM in India Standard Time). Both locations are in daylight during this window.

Cities in these zones

Airports in these zones

Airports in Central Time

  • GYY
  • MDW
  • ORD
  • HOU
  • IAH
  • SAT
  • DAL
  • DFW
  • AUS
  • BNA

Airports in India Standard Time

  • BOM
  • NMI
  • DEL
  • BLR
  • HYD
  • AMD
  • MAA
  • CCU
  • STV
  • PNQ

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