Mountain Time to Philippine Time Conversion (MST, MDT, and PHT)

For businesses that operate between North America and Southeast Asia, you may need a quick guide for determining the time on the other side of the globe. This time conversion guide is an essential tool for managers with teams in the Philippines and for Filipino professionals serving clients in Mountain Time.

Mountain Time has two versions depending on the season:

  • MST — Mountain Standard Time (UTC-7) from early November to mid-March
  • MDT — Mountain Daylight Time (UTC-6) from mid-March to early November

The Philippines uses PHT (UTC+8) year-round.

Below are three conversion tables you can reference anytime.

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1. MST to Philippine Time (PHT)

Used in the U.S. from early November to mid-March
Time difference: +15 hours

MSTPHT
12:00 AM3:00 PM
1:00 AM4:00 PM
2:00 AM5:00 PM
3:00 AM6:00 PM
4:00 AM7:00 PM
5:00 AM8:00 PM
6:00 AM9:00 PM
7:00 AM10:00 PM
8:00 AM11:00 PM
9:00 AM12:00 AM (next day)
10:00 AM1:00 AM
11:00 AM2:00 AM
12:00 PM3:00 AM
1:00 PM4:00 AM
2:00 PM5:00 AM
3:00 PM6:00 AM
4:00 PM7:00 AM
5:00 PM8:00 AM
6:00 PM9:00 AM
7:00 PM10:00 AM
8:00 PM11:00 AM
9:00 PM12:00 PM
10:00 PM1:00 PM
11:00 PM2:00 PM

2. MDT to Philippine Time (PHT)

Used in the U.S. from mid-March to early November
Time difference: +14 hours

MDTPHT
12:00 AM2:00 PM
1:00 AM3:00 PM
2:00 AM4:00 PM
3:00 AM5:00 PM
4:00 AM6:00 PM
5:00 AM7:00 PM
6:00 AM8:00 PM
7:00 AM9:00 PM
8:00 AM10:00 PM
9:00 AM11:00 PM
10:00 AM12:00 AM (next day)
11:00 AM1:00 AM
12:00 PM2:00 AM
1:00 PM3:00 AM
2:00 PM4:00 AM
3:00 PM5:00 AM
4:00 PM6:00 AM
5:00 PM7:00 AM
6:00 PM8:00 AM
7:00 PM9:00 AM
8:00 PM10:00 AM
9:00 PM11:00 AM
10:00 PM12:00 PM
11:00 PM1:00 PM

3. Philippine Time (PHT) to Mountain Time (MST & MDT)

For readers in the Philippines

  • MST applies early November → mid-March
  • MDT applies mid-March → early November
PHTMST (Nov–Mar)MDT (Mar–Nov)
12:00 AM9:00 AM (prev day)10:00 AM (prev day)
1:00 AM10:00 AM (prev day)11:00 AM (prev day)
2:00 AM11:00 AM (prev day)12:00 PM (prev day)
3:00 AM12:00 PM (prev day)1:00 PM (prev day)
4:00 AM1:00 PM (prev day)2:00 PM (prev day)
5:00 AM2:00 PM (prev day)3:00 PM (prev day)
6:00 AM3:00 PM (prev day)4:00 PM (prev day)
7:00 AM4:00 PM (prev day)5:00 PM (prev day)
8:00 AM5:00 PM (prev day)6:00 PM (prev day)
9:00 AM6:00 PM (prev day)7:00 PM (prev day)
10:00 AM7:00 PM (prev day)8:00 PM (prev day)
11:00 AM8:00 PM (prev day)9:00 PM (prev day)
12:00 PM9:00 PM (prev day)10:00 PM (prev day)
1:00 PM10:00 PM (prev day)11:00 PM (prev day)
2:00 PM11:00 PM (prev day)12:00 AM
3:00 PM12:00 AM1:00 AM
4:00 PM1:00 AM2:00 AM
5:00 PM2:00 AM3:00 AM
6:00 PM3:00 AM4:00 AM
7:00 PM4:00 AM5:00 AM
8:00 PM5:00 AM6:00 AM
9:00 PM6:00 AM7:00 AM
10:00 PM7:00 AM8:00 AM
11:00 PM8:00 AM9:00 AM