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