CST to JST time converter
Japan Standard Time (JST) is 15 hours ahead of Central Time (CST) in January and 14 hours ahead in July, because daylight saving time shifts the difference. Use the grid below to line up Chicago and Tokyo: 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 04:43 CDT in Chicago and 18:43 JST in Tokyo.
2/10 zones · drag the tape, scroll sideways or use the arrow keys; Home jumps back to now.
CST to JST: frequently asked
What is the time difference between CST and JST?
Japan Standard Time (JST) is 15 hours ahead of Central Time (CST) in January and 14 hours ahead in July, because daylight saving time shifts the difference.
What time is 9 AM CST in JST?
9:00 AM CST is 12:00 AM JST the next day in January, and 11:00 PM JST in July.
When do working hours overlap between Chicago and Tokyo?
In January: Standard 9:00 AM–5:00 PM working hours never overlap. The closest fit is 2:00 AM CST, which is 5:00 PM JST. In July: Standard 9:00 AM–5:00 PM working hours never overlap. The closest fit is 3:00 AM CST, which is 5:00 PM JST.