MST to AST
Convert Mountain Time — Denver to Atlantic Time — Halifax — fast, accurate, and daylight-saving aware.
When it's 9:00 AM in Denver, it's 12:00 PM in Halifax. Halifax is 3 hours ahead of Denver. Use the converter above to turn any MST time into AST, or scan the hour-by-hour table below for the full day.
MST to AST at a glance
Planning a meeting between Denver and Halifax
Planning a call between Denver and Halifax? The best overlap during a standard 9-to-5 workday runs 9:00 AM–2:00 PM MST (12:00 PM–5:00 PM AST). Aim for that window to reach both sides during business hours.
Hour-by-hour: Denver to Halifax
A full day mapped from MST to AST.
Frequently asked
Is Halifax ahead of or behind Denver?
Halifax is 3 hours ahead of Denver.
What is 12:00 PM MST in AST?
12:00 PM in Denver is 3:00 PM in Halifax.
Does this converter account for daylight saving time?
Yes. Conversions use the IANA time zone database, so MST and AST automatically reflect the correct daylight-saving offset for the current date.