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Convert Mountain Standard Time to Newfoundland Standard Time

Instantly convert Mountain Standard Time (MST) to Newfoundland Standard Time (NST) with our free online calculator.

Reviewed by Christopher FloiedUpdated

Mountain Standard Time

10:20:53 PM

Tue, Jun 23 (MST)

Newfoundland Standard Time

01:50:53 AM

Wed, Jun 24 (NST)

NST is +3.5 hours from MST

Convert a Specific Time

MST

24-Hour Comparison

MSTNST
12:00 AM3.5:00 AM
1:00 AM4.5:00 AM
2:00 AM5.5:00 AM
3:00 AM6.5:00 AM
4:00 AM7.5:00 AM
5:00 AM8.5:00 AM
6:00 AM9.5:00 AM
7:00 AM10.5:00 AM
8:00 AM11.5:00 AM
9:00 AM0.5:00 PM
10:00 AM1.5:00 PM
11:00 AM2.5:00 PM
12:00 PM3.5:00 PM
1:00 PM4.5:00 PM
2:00 PM5.5:00 PM
3:00 PM6.5:00 PM
4:00 PM7.5:00 PM
5:00 PM8.5:00 PM
6:00 PM9.5:00 PM
7:00 PM10.5:00 PM
8:00 PM11.5:00 PM
9:00 PM0.5:00 AM(+1d)
10:00 PM1.5:00 AM(+1d)
11:00 PM2.5:00 AM(+1d)

How to Convert Mountain Standard Time to Newfoundland Standard Time

Formula

To convert Mountain Standard Time (MST) to Newfoundland Standard Time (NST): Convert MST to NST

About Mountain Standard Time (MST)

Mountain Standard Time (MST, IANA: America/Denver and America/Phoenix) is the time zone for the US Mountain region and most of Canada's Rocky Mountain provinces, set at UTC-7:00. MST is observed from the first Sunday in November to the second Sunday in March; the region switches to Mountain Daylight Time (MDT = UTC-6:00) for the remainder of the year — EXCEPT for the State of Arizona (excluding Navajo Nation), which stays on MST year-round per Arizona Revised Statutes §1-242. Major MST cities: Denver, Phoenix, Salt Lake City, Albuquerque, El Paso, Tucson, Calgary, Edmonton. MST covers Colorado, Utah, Wyoming, Montana, Idaho (most), New Mexico, Arizona, parts of Texas + Mexico (Sonora). Population ~17 million in the time zone. Affects: NORAD Cheyenne Mountain operations, Denver Mile-High Stadium NFL game scheduling, Colorado ski-resort lift-operating hours, US Bureau of Land Management permit operations, and the Mormon Tabernacle Choir broadcast schedule from Salt Lake City.

About Newfoundland Standard Time (NST)

Newfoundland Standard Time (NST, IANA: America/St_Johns) is one of the world's few time zones with a 30-minute offset, set at UTC-3:30. NST is observed exclusively in the Canadian province of Newfoundland and Labrador (the island portion of the province and southeastern Labrador), serving approximately 500,000 residents. The 30-minute offset is preserved from the 1884 International Meridian Conference compromise that established time zones — Newfoundland Time was chosen because the island's longitudinal position (52.7°W central meridian for St. John's) falls between Atlantic and Eastern time zones, and the province's parliament voted to keep its own dedicated offset rather than align with neighboring provinces. NST observes Daylight Saving Time per the Canadian aligned schedule (switching to NDT = UTC-2:30 from March to November). Other 30/45-minute offset zones globally: India (IST UTC+5:30), Nepal (UTC+5:45), Myanmar (UTC+6:30), Iran (UTC+3:30), Afghanistan (UTC+4:30), Sri Lanka (UTC+5:30), Marquesas (UTC-9:30). NST affects: cod-fishing and offshore oil platform operations on the Grand Banks, ferry schedules to Cape Breton, and the historic Cabot Tower St. John's noon-gun.

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