World Timezones

MST to Honolulu Converter

Compare Honolulu to MST instead
Mountain Time2:47 amWed, Sep 9
Mountain TimeMDT
North America · UTC-6
2:47 amWed, Sep 9
12a
1a
2a
3a
4a
5a
6a
7a
8a
9a
10a
11a
12p
1p
2p
3p
4p
5p
6p
7p
8p
9p
10p
11p
HonoluluHST
HI, United States · UTC-10
10:47 pmTue, Sep 8
8p
9p
10p
11p
12a
1a
2a
3a
4a
5a
6a
7a
8a
9a
10a
11a
12p
1p
2p
3p
4p
5p
6p
7p

Offset

The time difference between Mountain Time and Honolulu is 4 hours.

4 hours

Mountain Time (MDT) is ahead of Honolulu (HST).

MDT: UTC-6

HST: UTC-10

Mountain Time is currently observing daylight saving time; Honolulu is not.

When to schedule

Business-hours overlap: 1 PM–5 PM in Mountain Time (9 AM–1 PM in Honolulu).

Both teams are in working hours during this window on weekdays.

Suggested time: 3:00 PM Mountain Time (11:00 AM Honolulu).

This window may shift by an hour during daylight saving time.

Public holidays in 2026

National public holidays can affect availability — a counterpart is likely off work on their own holidays, so it's worth planning meetings and deadlines around them.

United States

  • New Year's DayThu, Jan 1
  • Martin Luther King, Jr. DayMon, Jan 19
  • Presidents DayMon, Feb 16
  • Memorial DayMon, May 25
  • Juneteenth National Independence DayFri, Jun 19
  • Independence DayFri, Jul 3
  • Labour DayMon, Sep 7
  • Columbus DayMon, Oct 12
  • Veterans DayWed, Nov 11
  • Thanksgiving DayThu, Nov 26
  • Christmas DayFri, Dec 25

About these zones

Mountain Time is also known as MST, or MDT. To call United States, dial +1.

Honolulu uses Hawaii Time (HST). To call United States, dial +1.

Honolulu is approximately 3,350 miles west of Mountain Time.

Quick reference

Full 24-hour conversion table — tap any time to open it in the converter.

MSTHonoluluDay
12:00 am8:00 pm-1 day
1:00 am9:00 pm-1 day
2:00 am10:00 pm-1 day
3:00 am11:00 pm-1 day
4:00 am12:00 amSame day
5:00 am1:00 amSame day
6:00 am2:00 amSame day
7:00 am3:00 amSame day
8:00 am4:00 amSame day
9:00 am5:00 amSame day
10:00 am6:00 amSame day
11:00 am7:00 amSame day
12:00 pm8:00 amSame day
1:00 pm9:00 amSame day
2:00 pm10:00 amSame day
3:00 pm11:00 amSame day
4:00 pm12:00 pmSame day
5:00 pm1:00 pmSame day
6:00 pm2:00 pmSame day
7:00 pm3:00 pmSame day
8:00 pm4:00 pmSame day
9:00 pm5:00 pmSame day
10:00 pm6:00 pmSame day
11:00 pm7:00 pmSame day

Daylight saving time

Mountain Time observes daylight saving time; Honolulu does not. The offset between the two zones changes when Mountain Time transitions: on Sunday, November 1, 2026, clocks fall back from MDT to MST.

See the daylight saving time page for transition dates across every time zone.

Daylight today

Mountain Time
Sunrise
6:36 AM
Sunset
7:20 PM
Day length
12h 44m
Honolulu
Sunrise
6:18 AM
Sunset
6:42 PM
Day length
12h 25m

Cities in these zones

Cities in Mountain Time

Browse all cities to see the current local time anywhere.

Airports in these zones

Airports in Mountain Time

  • BJC
  • DEN
  • OGD
  • SLC

Airports in Hawaii Time

  • HNL

Related conversions

Common conversions

What is 9:00 am MST in Honolulu?
9:00 am MST is 5:00 am Honolulu.
What is 12:00 pm MST in Honolulu?
12:00 pm MST is 8:00 am Honolulu.
What is 12:30 pm MST in Honolulu?
12:30 pm MST is 8:30 am Honolulu.
What is 2:00 pm MST in Honolulu?
2:00 pm MST is 10:00 am Honolulu.
What is 5:00 pm MST in Honolulu?
5:00 pm MST is 1:00 pm Honolulu.
What is 11:30 pm MST in Honolulu?
11:30 pm MST is 7:30 pm Honolulu.