When it's 9:00 am in Denver, it's 10:00 am in Chicago. Your 9-to-5 working days overlap for 7 hours, so there's room for a meeting most days.
Convert Mountain Daylight Time (MDT) to Central Standard Time (CST) for any date and time.
Central Time is 1 hour ahead of Mountain Time all year.
Right now Mountain Time is on MST (UTC−7) and Central Time is on CST (UTC−6). Both switch to daylight saving time on 14 March 2027.
9:00 am to 5:00 pm MST is 10:00 am to 6:00 pm CST.
Mountain TimeReference
US & Canada; Arizona stays on MST
Tue, Nov 3
Central Time
US, Canada & Mexico
Tue, Nov 3
Best time to meet 9:00 AM–4:00 PM in Mountain Time 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 MST, 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.
| MST | CST |
|---|---|
| 12:00 am MST | 1:00 am CST |
| 1:00 am MST | 2:00 am CST |
| 2:00 am MST | 3:00 am CST |
| 3:00 am MST | 4:00 am CST |
| 4:00 am MST | 5:00 am CST |
| 5:00 am MST | 6:00 am CST |
| 6:00 am MST | 7:00 am CST |
| 7:00 am MST | 8:00 am CST |
| 8:00 am MST | 9:00 am CST |
| 9:00 am MST | 10:00 am CST |
| 10:00 am MST | 11:00 am CST |
| 11:00 am MST | 12:00 pm CST |
| 12:00 pm MST | 1:00 pm CST |
| 1:00 pm MST | 2:00 pm CST |
| 2:00 pm MST | 3:00 pm CST |
| 3:00 pm MST | 4:00 pm CST |
| 4:00 pm MST | 5:00 pm CST |
| 5:00 pm MST | 6:00 pm CST |
| 6:00 pm MST | 7:00 pm CST |
| 7:00 pm MST | 8:00 pm CST |
| 8:00 pm MST | 9:00 pm CST |
| 9:00 pm MST | 10:00 pm CST |
| 10:00 pm MST | 11:00 pm CST |
| 11:00 pm MST | 12:00 am CST(next day) |
Your working hours overlap for 7 hours, from 9:00 am MST (10:00 am CST) to 4:00 pm MST (5:00 pm CST). That's the best window for a meeting.
Mountain Daylight Time is UTC−6.
Colorado, Utah, New Mexico, Wyoming, Montana and southern Idaho, plus Alberta, from March to November. Most of Arizona never uses MDT: it stays on MST all year.
MDT isn't in use at the moment: Mountain Time is on MST (UTC−7) until 14 March 2027. The times on this page follow the clocks, so they show MST.
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.