HST to MST
Convert Hawaii Time — Honolulu to Mountain Time — Denver — fast, accurate, and daylight-saving aware.
When it's 9:00 AM in Honolulu, it's 1:00 PM in Denver. Denver is 4 hours ahead of Honolulu. Use the converter above to turn any HST time into MST, or scan the hour-by-hour table below for the full day.
HST to MST at a glance
Planning a meeting between Honolulu and Denver
Planning a call between Honolulu and Denver? The best overlap during a standard 9-to-5 workday runs 9:00 AM–1:00 PM HST (1:00 PM–5:00 PM MST). Aim for that window to reach both sides during business hours.
Hour-by-hour: Honolulu to Denver
A full day mapped from HST to MST.
Frequently asked
Is Denver ahead of or behind Honolulu?
Denver is 4 hours ahead of Honolulu.
What is 12:00 PM HST in MST?
12:00 PM in Honolulu is 4:00 PM in Denver.
Does this converter account for daylight saving time?
Yes. Conversions use the IANA time zone database, so HST and MST automatically reflect the correct daylight-saving offset for the current date.