IST to CST Time Converter - Live World Clock

Convert time between India Standard Time (IST) and Central Standard Time (CST). See current time with live clocks.

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India (IST)

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11:51:40 PM
Sunday, February 1, 2026

United States (CST)

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12:21:40 PM
Sunday, February 1, 2026

Current Time Difference

IST is 11.5 hours ahead of CST

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What is IST (India Standard Time)?

India Standard Time (IST) is the time zone observed throughout India, with a time offset of UTC+5:30. India does not observe Daylight Saving Time.

Countries and Regions Using IST

Primary Country:

  • India - The entire country follows IST

Also Used By:

  • Sri Lanka

Key Facts about IST:

  • ✓ Over 1.4 billion people use IST
  • ✓ Major tech and financial hub
  • ✓ No DST observed
  • ✓ Single timezone across the country
  • ✓ Major Cities: Mumbai, Delhi, Bangalore, Kolkata, Chennai, Hyderabad
  • ✓ UTC Offset: +5:30

What is CST (Central Standard Time)?

Central Standard Time (CST) covers central North America, UTC-6:00.

Countries and Regions Using CST

Primary Country:

  • United States
  • States: Texas, Illinois, Wisconsin, Tennessee, Missouri

Also Used By:

  • Mexico
  • Canada - Manitoba, Saskatchewan

Key Facts about CST:

  • ✓ Second largest US timezone
  • ✓ Major business centers in Chicago and Houston
  • ✓ DST observed March-November
  • ✓ Major Cities: Chicago, Houston, Dallas, San Antonio, Austin
  • ✓ UTC Offset: -6:00 (-5:00 during CDT)

IST to CST Time Difference

Standard Time Difference:

IST is 11.5 hours ahead

Common Use Cases:

  • • Business meetings between India and United States
  • • International collaboration across timezones
  • • Scheduling calls and conferences

Frequently Asked Questions

Which countries are in IST time zone?

India is the primary country using IST (+5:30). Other countries include: Sri Lanka.

Which countries are in CST time zone?

United States is the primary country using CST (-6:00). Other countries include: Mexico, Canada.

How many hours is IST ahead of CST?

IST is 11.5 hours ahead of CST.

Does India observe Daylight Saving Time?

No, India does not observe Daylight Saving Time. IST remains +5:30 throughout the year.

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