Quarter to Twelve

Time in HST and MDT

The time difference between Hawaii–Aleutian Standard Time (HST) and Mountain Daylight Time (MDT) is 4 hours. Mountain Daylight Time is 4 hours ahead of Hawaii–Aleutian Standard Time.

Hawaii–Aleutian Standard Time

  • The current local time in HST is 6:56 am (April 29, 2024)
  • HST time zone offset is UTC-10:00

Mountain Daylight Time

  • The current local time in MDT is 10:56 am (April 29, 2024)
  • MDT time zone offset is UTC-06:00

How to convert Hawaii–Aleutian Standard Time to Mountain Daylight Time?

Add 4 hours to Hawaii–Aleutian Standard Time to get Mountain Daylight Time.

Time in HST

00:00

Time in MDT

00:00

Use the slider above to convert Hawaii–Aleutian Standard Time to Mountain Daylight Time and view the day and night map at different times.

Day–night colors on the map:
Day colors Day
Civil twilight colors Civil twilight
Nautical twilight colors Nautical twilight
Astronomical twilight colors Astronomical twilight
Night colors Night

Time Conversion Chart

HSTMDT
12am4am
1am5am
2am6am
3am7am
4am8am
5am9am
6am10am
7am11am
8am12pm
9am1pm
10am2pm
11am3pm
12pm4pm
1pm5pm
2pm6pm
3pm7pm
4pm8pm
5pm9pm
6pm10pm
7pm11pm
8pm12am
9pm1am
10pm2am
11pm3am