HST to MST
Convert Hawaii Time — Honolulu to Arizona Time — Phoenix (no DST) — fast, accurate, and daylight-saving aware.
When it's 9:00 AM in Honolulu, it's 12:00 PM in Phoenix. Phoenix is 3 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 Phoenix
Planning a call between Honolulu and Phoenix? The best overlap during a standard 9-to-5 workday runs 9:00 AM–2:00 PM HST (12:00 PM–5:00 PM MST). Aim for that window to reach both sides during business hours.
Hour-by-hour: Honolulu to Phoenix
A full day mapped from HST to MST.
Frequently asked
Is Phoenix ahead of or behind Honolulu?
Phoenix is 3 hours ahead of Honolulu.
What is 12:00 PM HST in MST?
12:00 PM in Honolulu is 3:00 PM in Phoenix.
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.