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.