JST to CST Time Converter
Japan Standard Time → Central Standard Time
JST = UTC+9CST = UTC-5
⚠️ CST is ambiguous — on this page it means Central Standard Time. It also refers to:
JST (Tokyo) ↔ CST (Chicago)
No overlap — one side will join outside working hours
JST (Tokyo)
CST (Chicago)
Working hours: 09:00–17:00 local. Green = both working. Purple = one side only.
Frequently Asked Questions
What is the difference between jst and cst?
Japan Standard Time (jst) is UTC+9 and Central Standard Time (cst) is UTC-5. The difference between them is 14 hours.
Where is jst used?
Japan Standard Time (jst) is used in Japan and surrounding regions. The IANA timezone identifier is Asia/Tokyo.
Where is cst used?
Central Standard Time (cst) is used in USA and surrounding regions. The IANA timezone identifier is America/Chicago. Note: cst is ambiguous and may refer to other timezones.
How do I convert jst to cst?
Use the interactive converter above. Drag the time slider to any jst time and the cst equivalent updates instantly. You can also type a time like "3pm" or "15:00" in the input bar.
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