MST to HST Time Converter
Mountain Standard Time → Hawaii Standard Time
MST
UTC-7
Mountain Standard Time
HST
UTC-10
Hawaii Standard Time
MST observes DST — offset shifts ±1h during transitions
Mountain Standard Time (MST) is 3 hours behind Hawaii Standard Time (HST). When it is noon in MST, it is 8 AM in HST. This offset may change during Daylight Saving Time transitions.
All 24 Hours — MST to HST
Click any row to see the full detail page. Current hour in MST is highlighted.
Best Meeting Times — MST & HST
Recommended windows where both MST and HST participants are within working hours (8 AM–6 PM).
Tip: When scheduling between MST and HST, aim for the “Best” windows above. These times keep both parties within normal working hours, avoiding early-morning or late-evening fatigue. Note that one of these time zones observes Daylight Saving Time — the offset may shift ±1 hour around transition dates.
Related Time Zone Conversions
Frequently Asked Questions — MST to HST
Mountain Standard Time (MST) is 3 hours behind Hawaii Standard Time (HST). MST is UTC-7 and HST is UTC-10. This offset may shift by ±1 hour during Daylight Saving Time transitions.
Live Now
MST
UTC-6
05:43:52
Saturday
HST
UTC-10
01:43:52
Saturday
Right now, 5 AM MST = 1 AM HST
Business Hours Quick Jump
Reverse Conversion
HST to MST
Hawaii Standard Time → Mountain Standard Time
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