JST to CST time converter
Central Time (CST) is 15 hours behind Japan Standard Time (JST) in January and 14 hours behind in July, because daylight saving time shifts the difference. Use the grid below to line up Tokyo and Chicago: drag the cursor across the day, and working hours (9 AM–5 PM) are highlighted in every row so you can spot a slot that suits both sides.
Right now it is 18:43 JST in Tokyo and 04:43 CDT in Chicago.
2/10 zones · drag the tape, scroll sideways or use the arrow keys; Home jumps back to now.
JST to CST: frequently asked
What is the time difference between JST and CST?
Central Time (CST) is 15 hours behind Japan Standard Time (JST) in January and 14 hours behind in July, because daylight saving time shifts the difference.
What time is 9 AM JST in CST?
9:00 AM JST is 6:00 PM CST the previous day in January, and 7:00 PM CST the previous day in July.
When do working hours overlap between Tokyo and Chicago?
In January: Standard 9:00 AM–5:00 PM working hours never overlap. The closest fit is 12:00 AM JST, which is 9:00 AM CST. In July: Standard 9:00 AM–5:00 PM working hours never overlap. The closest fit is 11:00 PM JST, which is 9:00 AM CST.