Same clocks, two names. Central Time runs on CDT in summer and CST in winter, so a time written in the wrong one is an hour off.
Convert Central Daylight Time (CDT) to Central Standard Time (CST) for any date and time.
CST is 1 hour behind CDT. Central Time uses CDT from March to November and CST the rest of the year.
Right now Central Time is on CST (UTC−6), until 14 March 2027. CST is always 1 hour behind CDT.
9:00 am to 5:00 pm CDT is 8:00 am to 4:00 pm CST.
CDTReference
Central Daylight Time, UTC−5
Tue, Nov 3
CST
Central Standard Time, UTC−6
Tue, Nov 3
Best time to meet 10:00 AM–5:00 PM in CDT on Tue, Nov 3, when everyone is inside working hours.
Book a meeting in this windowWorking hours: 9:00 AM–5:00 PM, Monday to FridayEveryone at work
Every hour of the day in CDT, converted to CST. Hatched cells are working hours (9:00 am to 5:00 pm); rows with the accent bar are working hours in both zones.
| CDT | CST |
|---|---|
| 12:00 am CDT | 11:00 pm CST(day before) |
| 1:00 am CDT | 12:00 am CST |
| 2:00 am CDT | 1:00 am CST |
| 3:00 am CDT | 2:00 am CST |
| 4:00 am CDT | 3:00 am CST |
| 5:00 am CDT | 4:00 am CST |
| 6:00 am CDT | 5:00 am CST |
| 7:00 am CDT | 6:00 am CST |
| 8:00 am CDT | 7:00 am CST |
| 9:00 am CDT | 8:00 am CST |
| 10:00 am CDT | 9:00 am CST |
| 11:00 am CDT | 10:00 am CST |
| 12:00 pm CDT | 11:00 am CST |
| 1:00 pm CDT | 12:00 pm CST |
| 2:00 pm CDT | 1:00 pm CST |
| 3:00 pm CDT | 2:00 pm CST |
| 4:00 pm CDT | 3:00 pm CST |
| 5:00 pm CDT | 4:00 pm CST |
| 6:00 pm CDT | 5:00 pm CST |
| 7:00 pm CDT | 6:00 pm CST |
| 8:00 pm CDT | 7:00 pm CST |
| 9:00 pm CDT | 8:00 pm CST |
| 10:00 pm CDT | 9:00 pm CST |
| 11:00 pm CDT | 10:00 pm CST |
Your working hours overlap for 7 hours, from 10:00 am CDT (9:00 am CST) to 5:00 pm CDT (4:00 pm CST). That's the best window for a meeting.
Central Daylight Time is UTC−5. CDT is also used for Cuba Daylight Time (UTC−4). This page converts North American Central Time.
Texas, Illinois, Minnesota, Louisiana and most of the Midwest and South, plus Manitoba, from March to November. Saskatchewan and most of Mexico don't switch to CDT.
Central Standard Time is UTC−6. CST is also used for China Standard Time (UTC+8) and Cuba Standard Time (UTC−5). This page converts North American Central Time.
Texas, Illinois, Minnesota, Louisiana and most of the Midwest and South, plus Manitoba in Canada. Saskatchewan and most of Mexico stay on CST all year. CT is the short form for the whole zone.