JST to CST Converter – Japan Standard Time to Central Standard Time
CST is 15 hours behind JST. JST (Japan Standard Time) is UTC+9 all year, while CST (Central Standard Time) is UTC-6, switching to CDT (UTC-5) during daylight saving. The live clocks below show the current time in both zones, updated every second.
JST to CST Conversion Table (Hour by Hour)
Standard-time conversion from Japan Standard Time to Central Standard Time. During daylight saving periods the offset shifts by one hour - the live clocks above always show the correct current time.
| JST (UTC+9) | CST (UTC-6) |
|---|---|
| 12:00 AM | 9:00 AM (previous day) |
| 1:00 AM | 10:00 AM (previous day) |
| 2:00 AM | 11:00 AM (previous day) |
| 3:00 AM | 12:00 PM (previous day) |
| 4:00 AM | 1:00 PM (previous day) |
| 5:00 AM | 2:00 PM (previous day) |
| 6:00 AM | 3:00 PM (previous day) |
| 7:00 AM | 4:00 PM (previous day) |
| 8:00 AM | 5:00 PM (previous day) |
| 9:00 AM | 6:00 PM (previous day) |
| 10:00 AM | 7:00 PM (previous day) |
| 11:00 AM | 8:00 PM (previous day) |
| 12:00 PM | 9:00 PM (previous day) |
| 1:00 PM | 10:00 PM (previous day) |
| 2:00 PM | 11:00 PM (previous day) |
| 3:00 PM | 12:00 AM |
| 4:00 PM | 1:00 AM |
| 5:00 PM | 2:00 AM |
| 6:00 PM | 3:00 AM |
| 7:00 PM | 4:00 AM |
| 8:00 PM | 5:00 AM |
| 9:00 PM | 6:00 AM |
| 10:00 PM | 7:00 AM |
| 11:00 PM | 8:00 AM |
Frequently Asked Questions
What is the time difference between JST and CST?
CST is 15 hours behind JST. JST (Japan Standard Time) is UTC+9 and CST (Central Standard Time) is UTC-6.
How do I convert JST to CST?
Take your time in JST and subtract 15 hours. For example, 9:00 AM JST is 6:00 PM in CST. The live clocks at the top of this page always show the current conversion.
Does daylight saving time affect JST to CST conversion?
Yes. CST switches to CDT (UTC-5) in summer, so the gap between the two zones changes during DST periods. The live clocks on this page use the IANA timezone database and always reflect the correct current offset automatically.
What is the best time for a meeting between JST and CST?
Look for overlap between 9:00 AM-6:00 PM working hours in both zones using the conversion table above. CST is 15 hours behind JST, so overlap is limited - early morning in one zone and evening in the other usually works best.