JST to CST Converter

Convert Japan Standard Time (JST) to Central Time (CST), with daylight saving time handled for you.

CST to JST

Now in JST

3:02 AM

Japan Standard Time · Tokyo

Now in CST

1:02 PM

Central Time · Chicago

Results

3:02 AM JST in CST

1:02 PM

Central Time · previous day · right now CST is 14 hours behind JST

Times follow Tokyo for JST and Chicago for CST, using the IANA time zone database.

JST to CST time difference

CST is 14 hours behind JST for most of 2026, and 15 hours behind JST for about 127 days, because daylight saving time changes on different dates.

Japan Standard Time does not use daylight saving time. In 2026, Central Time switches to CDT on March 8 and back to CST on November 1.

JST to CST conversion table

Every hour on 2026-09-29. Highlighted rows fall inside 9 AM–5 PM in both zones.

JST (Japan Standard Time)CST (Central Time)
12:00 AM10:00 AM · previous day
1:00 AM11:00 AM · previous day
2:00 AM12:00 PM · previous day
3:00 AM1:00 PM · previous day
4:00 AM2:00 PM · previous day
5:00 AM3:00 PM · previous day
6:00 AM4:00 PM · previous day
7:00 AM5:00 PM · previous day
8:00 AM6:00 PM · previous day
9:00 AM7:00 PM · previous day
10:00 AM8:00 PM · previous day
11:00 AM9:00 PM · previous day
12:00 PM10:00 PM · previous day
1:00 PM11:00 PM · previous day
2:00 PM12:00 AM
3:00 PM1:00 AM
4:00 PM2:00 AM
5:00 PM3:00 AM
6:00 PM4:00 AM
7:00 PM5:00 AM
8:00 PM6:00 AM
9:00 PM7:00 AM
10:00 PM8:00 AM
11:00 PM9:00 AM

Working hours overlap

On 2026-09-29, 9 AM–5 PM workdays in JST and CST don't overlap. Try an early start in one zone and a late finish in the other, or use the meeting planner.

Convert JST to other time zones

How to use

Follow these steps to get a result

  1. Pick a date and a time in Japan Standard Time (JST).

  2. Read the matching CST time, including whether it falls on the next or previous day.

  3. Scan the 24-hour table to see every hour at once, with shared working hours highlighted.

Features

What this tool includes

  • Live clocks for both time zones

  • Daylight saving time handled automatically

  • 24-hour conversion table

  • Working-hours overlap

FAQ

Common questions about this tool

CST is 14 hours behind JST for most of 2026, and 15 hours behind JST for about 127 days, because daylight saving time changes on different dates.

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