Convert Newfoundland Standard Time to Mountain Standard Time
Instantly convert Newfoundland Standard Time (NST) to Mountain Standard Time (MST) with our free online calculator.
Newfoundland Standard Time
01:50:49 AM
Wed, Jun 24 (NST)
Mountain Standard Time
10:20:49 PM
Tue, Jun 23 (MST)
Convert a Specific Time
24-Hour Comparison
| NST | MST |
|---|---|
| 12:00 AM | 8.5:00 PM(-1d) |
| 1:00 AM | 9.5:00 PM(-1d) |
| 2:00 AM | 10.5:00 PM(-1d) |
| 3:00 AM | 11.5:00 PM(-1d) |
| 4:00 AM | 0.5:00 AM |
| 5:00 AM | 1.5:00 AM |
| 6:00 AM | 2.5:00 AM |
| 7:00 AM | 3.5:00 AM |
| 8:00 AM | 4.5:00 AM |
| 9:00 AM | 5.5:00 AM |
| 10:00 AM | 6.5:00 AM |
| 11:00 AM | 7.5:00 AM |
| 12:00 PM | 8.5:00 AM |
| 1:00 PM | 9.5:00 AM |
| 2:00 PM | 10.5:00 AM |
| 3:00 PM | 11.5:00 AM |
| 4:00 PM | 0.5:00 PM |
| 5:00 PM | 1.5:00 PM |
| 6:00 PM | 2.5:00 PM |
| 7:00 PM | 3.5:00 PM |
| 8:00 PM | 4.5:00 PM |
| 9:00 PM | 5.5:00 PM |
| 10:00 PM | 6.5:00 PM |
| 11:00 PM | 7.5:00 PM |
How to Convert Newfoundland Standard Time to Mountain Standard Time
Formula
To convert Newfoundland Standard Time (NST) to Mountain Standard Time (MST): Convert NST to MST
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.
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.