CST to MST converter
When it's 9:00 am in Chicago, it's 8:00 am in Denver. Your 9-to-5 working days overlap for 7 hours, so there's room for a meeting most days.
Convert Central Standard Time (CST) to Mountain Standard Time (MST) for any date and time.
Mountain Time is 1 hour behind Central Time all year.
Right now Central Time is on CDT (UTC−5) and Mountain Time is on MDT (UTC−6). Both switch back to standard time on 1 November 2026.
US clocks go back on 1 November 2026. From then, MST is still 1 hour behind CST.
9:00 am to 5:00 pm CST is 8:00 am to 4:00 pm MST.
- 8:00 am CST is 7:00 am MST
- 9:00 am CST is 8:00 am MST
- 10:00 am CST is 9:00 am MST
- 12:00 pm CST is 11:00 am MST
- 3:00 pm CST is 2:00 pm MST
- 5:00 pm CST is 4:00 pm MST
Hours in Central Time, Fri, Oct 23
Central Time
US, Canada & Mexico
Fri, Oct 23
CDT · UTC−5ReferenceOutside working hoursMountain Time
US & Canada; Arizona stays on MST
Fri, Oct 23
MDT · UTC−6−1h from Central TimeOutside working hours
Best time to meet: 10:00 AM–5:00 PM in Central Time on Fri, Oct 23, when everyone is inside working hours.
Book a meeting in this windowWorking hours: 9:00 AM–5:00 PM, Monday to FridayEveryone at work
CST to MST conversion table
Every hour of the day in CST, converted to MST. Shaded cells are working hours (9:00 am to 5:00 pm); green rows are working hours in both zones.
| CST | MST |
|---|---|
| 12:00 am CST | 11:00 pm MST(day before) |
| 1:00 am CST | 12:00 am MST |
| 2:00 am CST | 1:00 am MST |
| 3:00 am CST | 2:00 am MST |
| 4:00 am CST | 3:00 am MST |
| 5:00 am CST | 4:00 am MST |
| 6:00 am CST | 5:00 am MST |
| 7:00 am CST | 6:00 am MST |
| 8:00 am CST | 7:00 am MST |
| 9:00 am CST | 8:00 am MST |
| 10:00 am CST | 9:00 am MST |
| 11:00 am CST | 10:00 am MST |
| 12:00 pm CST | 11:00 am MST |
| 1:00 pm CST | 12:00 pm MST |
| 2:00 pm CST | 1:00 pm MST |
| 3:00 pm CST | 2:00 pm MST |
| 4:00 pm CST | 3:00 pm MST |
| 5:00 pm CST | 4:00 pm MST |
| 6:00 pm CST | 5:00 pm MST |
| 7:00 pm CST | 6:00 pm MST |
| 8:00 pm CST | 7:00 pm MST |
| 9:00 pm CST | 8:00 pm MST |
| 10:00 pm CST | 9:00 pm MST |
| 11:00 pm CST | 10:00 pm MST |
Best times to meet
Your working hours overlap for 7 hours, from 10:00 am CST (9:00 am MST) to 5:00 pm CST (4:00 pm MST). That's the best window for a meeting.
About these time zones
CST: Central Standard Time
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.
Most places on Central Time are on CDT (UTC−5) right now, not CST. People still say "CST" all year, so the times on this page follow the clocks and show CDT until 1 November 2026.
MST: Mountain Standard Time
Mountain Standard Time is UTC−7. MST is also used for Malaysia Standard Time (UTC+8). This page converts US Mountain Time.
Colorado, Utah, New Mexico, Wyoming, Montana and southern Idaho, plus Alberta in Canada. Most of Arizona stays on MST all year (the Navajo Nation follows daylight saving time). MT is the short form for the whole zone.
Most places on Mountain Time are on MDT (UTC−6) right now, not MST. People still say "MST" all year, so the times on this page follow the clocks and show MDT until 1 November 2026.
How the difference changes
Both zones change their clocks on the same dates (next on 1 November 2026), so the difference stays 1 hour all year.