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