MDT to HST Time Converter

Mountain Daylight Time → Hawaii Standard Time

MDT

UTC-6

Mountain Daylight Time

offset
-4h
HST is 4h behind

HST

UTC-10

Hawaii Standard Time

Mountain Daylight Time (MDT) is 4 hours behind Hawaii Standard Time (HST). When it is noon in MDT, it is 8 AM in HST. This offset is fixed year-round.

Best Meeting Times — MDT & HST

Recommended windows where both MDT and HST participants are within working hours (8 AM–6 PM).

MDTHSTRatingDetail page
12 PM
8 AM
Best
1 PM
9 AM
Best
2 PM
10 AM
Best
3 PM
11 AM
Best
4 PM
12 PM
Best

Tip: When scheduling between MDT and HST, aim for the “Best” windows above. These times keep both parties within normal working hours, avoiding early-morning or late-evening fatigue.

Frequently Asked Questions — MDT to HST

Mountain Daylight Time (MDT) is 4 hours behind Hawaii Standard Time (HST). MDT is UTC-6 and HST is UTC-10.