Houston Time to MST Converter
MST is 1 hour behind CST. 9:00 AM CST = 8:00 AM MST.
MST is 1 hour behind CST. To convert Houston Time to MST, subtract 1 hour from the Houston Time time: 9:00 AM CST = 8:00 AM MST.
Houston Time (Houston time) is used in Houston, USA. MST (Mountain Time) is used in Denver, Salt Lake City, Albuquerque, Calgary, Edmonton; Phoenix (Arizona) all year.
Most of Arizona uses MST all year and does not switch to MDT.
Houston Time to MST time conversion table
Houston Time to MST on 7 Nov 2026. Today's date. Highlighted rows are 9 AM–5 PM in both places.
| Houston Time | MST | Day |
|---|---|---|
| 12:00 AM CST | 11:00 PM MST | previous day |
| 1:00 AM CST | 12:00 AM MST | night |
| 2:00 AM CST | 1:00 AM MST | night |
| 3:00 AM CST | 2:00 AM MST | night |
| 4:00 AM CST | 3:00 AM MST | night |
| 5:00 AM CST | 4:00 AM MST | night |
| 6:00 AM CST | 5:00 AM MST | night |
| 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 | work hours |
| 11:00 AM CST | 10:00 AM MST | work hours |
| 12:00 PM CST | 11:00 AM MST | work hours |
| 1:00 PM CST | 12:00 PM MST | work hours |
| 2:00 PM CST | 1:00 PM MST | work hours |
| 3:00 PM CST | 2:00 PM MST | work hours |
| 4:00 PM CST | 3:00 PM MST | work hours |
| 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 | night |
- Work rows — 9 AM–5 PM in both places
- Night in the destination (10 PM–6 AM)
How to convert Houston Time to MST
Subtract 1 hour from the Houston Time time to get MST.
Example: 9:00 AM CST = 8:00 AM MST.
Across midnight: 12:00 AM CST = 11:00 PM MST (previous day). The date changes, so always check the day as well as the hour.
Time difference between Houston Time and MST
The time difference between Houston Time and MST is 1 hour all year – MST is behind CST.
Houston Time and MST during daylight saving time
- Houston Time next changes on 14 Mar 2027: clocks go forward one hour at 01:59 local time, from CST (UTC−6) to CDT (UTC−5).
- MST next changes on 14 Mar 2027: clocks go forward one hour at 01:59 local time, from MST (UTC−7) to MDT (UTC−6).
Best time for a meeting between Houston Time and MST
Houston Time and MST share 7 hours of the 9 AM–5 PM working day. Any time between 10:00 AM and 5:00 PM CST lands between 9:00 AM and 4:00 PM MST, inside working hours for both.
Houston Time to MST FAQ
What is the time difference between Houston Time and MST?
MST is 1 hour behind CST all year. 9:00 AM CST = 8:00 AM MST.
What is 9 AM Houston Time in MST?
9:00 AM CST is 8:00 AM MST.
What is 12 PM (noon) Houston Time in MST?
12:00 PM CST is 11:00 AM MST.
Is MST ahead of or behind Houston Time?
MST is 1 hour behind CST, so it is earlier in MST than in Houston Time.
Does Houston Time change for daylight saving time?
Yes. Houston Time next changes on 14 Mar 2027, when clocks go forward one hour from CST to CDT.
Does MST change for daylight saving time?
Yes. MST next changes on 14 Mar 2027, when clocks go forward one hour from MST to MDT.
What is the best time for a meeting between Houston Time and MST?
Houston Time and MST share 7 hours of the 9 AM–5 PM working day. Any time between 10:00 AM and 5:00 PM CST lands between 9:00 AM and 4:00 PM MST, inside working hours for both.
Is MT the same as MST?
MST is the winter (standard) name of Mountain Time (MT). From March to November the same clocks are called MDT. This converter always uses the one in force on the date you choose.
Related conversions
Convert MST to Houston Time
Convert Houston Time to other time zones
Convert other time zones to MST
Learn more
Updated 7 November 2026. Time zone data: IANA tz database.