What is the time difference between CST and MST?

Mountain Standard Time (MST) is 1 hour behind Central Standard Time (CST). CST uses a UTC offset of UTC-5, while MST uses UTC-6. For example, when it's 9:00 AM in CST, it's 8:00 AM in MST. Note that this difference may shift by one hour during daylight saving time transitions if the two zones change on different dates. Use the conversion table above to see the exact time for each hour of the day.

How do I convert CST to MST?

To convert CST to MST, subtract 1 hour from the CST time. For example, 9:00 AM CST is 8:00 AM MST, and 5:00 PM CST is 4:00 PM MST. Keep in mind that during daylight saving time transitions, the offset between these timezones may temporarily change by one hour. You can also use the interactive converter above for quick, accurate results.

What time is it in MST when it's noon in CST?

When it's 12:00 PM (noon) in CST, it's 11:00 AM in MST. This is because MST is 1 hour behind CST. Similarly, when it's 6:00 PM in CST, it's 5:00 PM in MST. During daylight saving time transitions, these times may shift by one hour, so always verify the current offset. The color-coded conversion table above shows every hour mapped between both timezones.

How many hours behind is MST from CST?

MST is 1 hour behind CST. This means when it's 9:00 AM in CST, it's 8:00 AM in MST, and when it's midnight in CST, it's 11:00 PM in MST. The exact difference can vary by one hour during daylight saving time transitions. The conversion table above provides a complete hour-by-hour mapping.

Is MST ahead or behind CST?

MST is behind CST by 1 hour. Clocks in MST show an earlier time than CST, meaning the day starts later in MST relative to CST. For example, when it's noon in CST, it's still 11:00 AM in MST. This gap may change by one hour during DST transitions.

Does CST observe daylight saving time?

Yes, Central Standard Time observes daylight saving time. During DST, the abbreviation changes to CDT and clocks move forward by one hour, typically in spring. Clocks then fall back in autumn, returning to standard CST time. This means the UTC offset for CST shifts between two values depending on the season. Check our DST change calendar for exact transition dates that may affect your CST to MST conversions.

Does MST observe daylight saving time?

Yes, Mountain Standard Time observes daylight saving time. During DST, the abbreviation changes to MDT and clocks move forward by one hour, typically in spring. Clocks then fall back in autumn, returning to standard MST time. This means the UTC offset for MST shifts between two values depending on the season. Check our DST change calendar for exact transition dates that may affect your CST to MST conversions.

What is the best time to call from CST to MST?

The best time for a call between CST and MST is during overlapping business hours (9 AM – 5 PM) in both timezones. To reach someone in MST during their work day, call between 10:00 AM and 6:00 PM your CST time. Avoid calling too early or late, as the 1 hour difference means your evening could be their early morning. Check the color-coded conversion table above — green hours indicate business hours in both zones, making it easy to find the ideal time.

When does daylight saving time change in CST?

Daylight saving time transitions vary by year and region. Central Standard Time observes DST, which typically shifts clocks forward by one hour in spring ("spring forward") and back in fall ("fall back"). During these transition periods, the time difference between CST and MST may temporarily change by one hour, which can cause confusion for scheduled meetings or calls. It's important to double-check your conversions around transition dates, especially if the two timezones switch on different dates. Check our DST change calendar for exact transition dates in the current year.

Do CST and MST ever have the same time?

No, CST and MST are always 1 hour apart and never display the same clock time simultaneously. Both timezones observe DST and typically transition around the same period, so the standard difference remains consistent throughout the year. The 1 hour offset is determined by their fixed positions relative to the Prime Meridian (UTC). You can always rely on this consistent difference when planning across these timezones.

CST to MST Converter

Convert Central Standard Time to Mountain Standard Time. See the hour-by-hour conversion table below.

Timezone Details

Central Standard Time

9:06 PM

Thursday, April 2, 2026

CDT (UTC-05:00)

Mountain Standard Time

8:06 PM

Thursday, April 2, 2026

MDT (UTC-06:00)

Difference: -1 hour

CDT DST: Yes (CDT)

MDT DST: Yes (MDT)

24-Hour Overview

CDT — 24-hour overview

12a12a

3a3a

6a6a

9a9a

10a

11a

12p12p

3p3p

6p6p

9p9p

10p

11p

NightMorningBusinessEvening

MDT — 24-hour overview

11p11p

12a

2a2a

5a5a

8a8a

10a

11a11a

12p

2p2p

5p5p

8p8p

10p

NightMorningBusinessEvening

Frequently Asked Questions

Related Conversions

MST to CST CST to EST EST to CST CST to PST PST to CST CST to GMT GMT to CST MST to GMT GMT to MST

Cities in These Timezones

CST Cities

Chicago Houston Dallas Minneapolis

MST Cities

Denver

More Tools

Compare CST & MST Plan a Meeting (CST & MST)See on Map

Learn More

How Time Zones Work Understanding DST Timezone Abbreviations

External Resources

Central Standard Time on Wikipedia Mountain Standard Time on Wikipedia IANA Time Zone Database