JST to CST converter
Central time is 14 hours behind Japan time in summer and 15 hours behind it in winter.
Right now it's in Tokyo (JST) and in Chicago (CT).
How to convert
To convert JST to CT, subtract 14 hours while the US is on daylight saving time (March to early November) and subtract 15 hours the rest of the year.
Hourly chart
| Japan (JST) | Central (CT), summer | Central, winter |
|---|---|---|
| 12:00 AM JST | 10:00 AM (previous day) CT | 9:00 AM (previous day) CT |
| 1:00 AM JST | 11:00 AM (previous day) CT | 10:00 AM (previous day) CT |
| 2:00 AM JST | 12:00 PM (previous day) CT | 11:00 AM (previous day) CT |
| 3:00 AM JST | 1:00 PM (previous day) CT | 12:00 PM (previous day) CT |
| 4:00 AM JST | 2:00 PM (previous day) CT | 1:00 PM (previous day) CT |
| 5:00 AM JST | 3:00 PM (previous day) CT | 2:00 PM (previous day) CT |
| 6:00 AM JST | 4:00 PM (previous day) CT | 3:00 PM (previous day) CT |
| 7:00 AM JST | 5:00 PM (previous day) CT | 4:00 PM (previous day) CT |
| 8:00 AM JST | 6:00 PM (previous day) CT | 5:00 PM (previous day) CT |
| 9:00 AM JST | 7:00 PM (previous day) CT | 6:00 PM (previous day) CT |
| 10:00 AM JST | 8:00 PM (previous day) CT | 7:00 PM (previous day) CT |
| 11:00 AM JST | 9:00 PM (previous day) CT | 8:00 PM (previous day) CT |
| 12:00 PM JST | 10:00 PM (previous day) CT | 9:00 PM (previous day) CT |
| 1:00 PM JST | 11:00 PM (previous day) CT | 10:00 PM (previous day) CT |
| 2:00 PM JST | 12:00 AM CT | 11:00 PM (previous day) CT |
| 3:00 PM JST | 1:00 AM CT | 12:00 AM CT |
| 4:00 PM JST | 2:00 AM CT | 1:00 AM CT |
| 5:00 PM JST | 3:00 AM CT | 2:00 AM CT |
| 6:00 PM JST | 4:00 AM CT | 3:00 AM CT |
| 7:00 PM JST | 5:00 AM CT | 4:00 AM CT |
| 8:00 PM JST | 6:00 AM CT | 5:00 AM CT |
| 9:00 PM JST | 7:00 AM CT | 6:00 AM CT |
| 10:00 PM JST | 8:00 AM CT | 7:00 AM CT |
| 11:00 PM JST | 9:00 AM CT | 8:00 AM CT |
US daylight saving time: March 14 to November 7, 2027.
Questions people ask
Is CST behind JST?
Central time is 14 hours behind Japan time in summer and 15 hours behind it in winter. The converter above uses the right offset for any date.
What is CST right now?
See the live clocks at the top of this page. They show the current time in Tokyo and Chicago, corrected by an internet time check.
Does JST change for daylight saving?
Yes, Japan switches to daylight time from March to November.
More conversions
See also: time zone converter · meeting planner · US time zones