From
HST
Time Converter
HST to MST Time Converter
Convert Hawaii Time to Mountain Time with a live clock and clean permalinks.
To
MST / MDT
When it is 7:30 AM in Hawaii Time, it is 11:30 AM in Mountain Time.
HST to MST at a glance
Mountain Time is 4 hours ahead of Hawaii Time. If someone gives you a time in Hawaii Time, move the clock by 4 hours to read it in Mountain Time. A 9:00 AM start in Honolulu becomes 1:00 PM in Denver.
What Hawaii Time covers
Hawaii Time is used in Honolulu and the rest of Hawaii. It does not switch for daylight saving time. It is helpful when your team works with travel, hospitality, or customers in the Pacific.
What Mountain Time covers
Mountain Time is used across the US and Canada in cities such as Denver and Calgary. It is useful when you work with logistics, field teams, or regional teams across the western half of North America.
Quick answers
What is the time difference between HST and MST?
Mountain Time is 4 hours ahead of Hawaii Time.
What happens to a 3:00 PM meeting in HST?
It lands at 7:00 PM in MST.
Does daylight saving time matter for HST to MST?
Hawaii Time and Mountain Time are shown using the offsets that are active right now, so the result already reflects any daylight saving change in effect today.