CST to JST Time Converter - Live World Clock

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

United States (CST)

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12:27:45 PM
Thursday, August 20, 2026

Japan (JST)

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02:27:45 AM
Friday, August 21, 2026

Current Time Difference

CST is -15 hours behind JST

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)

What is JST (Japan Standard Time)?

Japan Standard Time (JST) used in Japan, UTC+9:00.

Countries and Regions Using JST

Primary Country:

  • Japan

Also Used By:

  • South Korea

Key Facts about JST:

  • ✓ Third largest economy
  • ✓ Major tech center
  • ✓ No DST observed
  • ✓ Major Cities: Tokyo, Osaka, Yokohama, Nagoya
  • ✓ UTC Offset: +9:00

CST to JST Time Difference

Standard Time Difference:

CST is -15 hours behind

Common Use Cases:

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

Frequently Asked Questions

Which countries are in CST time zone?

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

Which countries are in JST time zone?

Japan is the primary country using JST (+9:00). Other countries include: South Korea.

How many hours is CST ahead of JST?

CST is -15 hours behind JST.

Does United States observe Daylight Saving Time?

Yes, United States observes Daylight Saving Time. During DST, CST changes to CDT (Central Daylight Time) with UTC offset of -5:00.