JST to CST
JST is UTC+9 and CST is UTC−5 today — CST is 14 hours behind JST. Abbreviations are for reading: this page resolves JST to Asia/Tokyo and CST to America/Chicago, which are the names that do not go ambiguous.
CST: US Central — China Standard Time also uses these letters.
The working day, side by side
The working days do not meet at all. Current abbreviations: JST and CDT.
| City | 00:00 in JST | 01:00 in JST | 02:00 in JST | 03:00 in JST | 04:00 in JST | 05:00 in JST | 06:00 in JST | 07:00 in JST | 08:00 in JST | 09:00 in JST | 10:00 in JST | 11:00 in JST | 12:00 in JST | 13:00 in JST | 14:00 in JST | 15:00 in JST | 16:00 in JST | 17:00 in JST | 18:00 in JST | 19:00 in JST | 20:00 in JST | 21:00 in JST | 22:00 in JST | 23:00 in JST |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| JST—— | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 |
| CST—— | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 |
- Working hours
- Shoulder
- Night
- Overlap
Do more with JST and CST
Common questions
What is JST in CST?
CST is 14 hours behind JST today: noon in JST is 22:00 in CST.
Is JST the same all year?
JST refers to the offset used by Asia/Tokyo. Where that zone observes daylight saving, the letters change with it, which is why this site stores the identifier and not the abbreviation.
When can JST and CST meet?
They do not overlap during working hours. 07:00–08:00 your time (17:00 there) is the cheapest compromise.