What is CST in MST?
Mountain Time is 1 hour behind
Central Time is on UTC−5:00 and Mountain Time is on UTC−6:00 right now. Both are on daylight saving, so their clocks read CDT and MDT. That gap holds all year, because both zones change their clocks together.
- Time in Chicago
- 9:14 pm
- Time in Denver
- 8:14 pm
- Difference
- −1 h
- Next clock change
- November 1, 2026
Convert a time
MDT — Mountain Time
8:00 pm
Tue
Daylight saving
Central Time
Clocks go back one hour at 2am local time, becoming CST.
Mountain Time
Clocks go back one hour at 2am local time, becoming MST.
CST to MST conversion table
Every hour of Tuesday, September 22, 2026, converted from Central Time to Mountain Time. 1 of the 24 hours fall on a different calendar day in Denver, which is marked.
- 12:00 am CDT
- 11:00 pm MDT−1 day
- 1:00 am CDT
- 12:00 am MDT
- 2:00 am CDT
- 1:00 am MDT
- 3:00 am CDT
- 2:00 am MDT
- 4:00 am CDT
- 3:00 am MDT
- 5:00 am CDT
- 4:00 am MDT
- 6:00 am CDT
- 5:00 am MDT
- 7:00 am CDT
- 6:00 am MDT
- 8:00 am CDT
- 7:00 am MDT
- 9:00 am CDT
- 8:00 am MDT
- 10:00 am CDT
- 9:00 am MDT
- 11:00 am CDT
- 10:00 am MDT
- 12:00 pm CDT
- 11:00 am MDT
- 1:00 pm CDT
- 12:00 pm MDT
- 2:00 pm CDT
- 1:00 pm MDT
- 3:00 pm CDT
- 2:00 pm MDT
- 4:00 pm CDT
- 3:00 pm MDT
- 5:00 pm CDT
- 4:00 pm MDT
- 6:00 pm CDT
- 5:00 pm MDT
- 7:00 pm CDT
- 6:00 pm MDT
- 8:00 pm CDT
- 7:00 pm MDT
- 9:00 pm CDT
- 8:00 pm MDT
- 10:00 pm CDT
- 9:00 pm MDT
- 11:00 pm CDT
- 10:00 pm MDT
Scheduling between the two
Working hours overlap from 10:00 am to 6:00 pm CDT, which is 9:00 am to 5:00 pm MDT. Anything inside that window falls in the normal working day at both ends.
A note on CST: it can also mean China Standard Time (UTC+8) and Cuba Standard Time (UTC−5). This page means US Central Time.
Central Time (CDT) is used in Dallas, Houston, Mexico City and Winnipeg
Mountain Time (MDT) is used in Salt Lake City, Albuquerque and Calgary. Arizona keeps MST all year and does not follow MDT.