Offset
The time difference between Mountain Time and Newfoundland Time is 3.5 hours.
Mountain Time (MDT) is behind Newfoundland Time (NDT).
MDT: UTC-6
NDT: UTC-2:30
Both zones are currently observing daylight saving time.
When to schedule
Business-hours overlap: 9 AM–2 PM in Mountain Time (12 PM–5 PM in Newfoundland Time).
Both teams are in working hours during this window on weekdays.
Suggested time: 11:00 AM Mountain Time (2:30 PM Newfoundland Time).
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
Canada
- New Year's DayThu, Jan 1
- Good FridayFri, Apr 3
- Victoria DayMon, May 18
- Canada DayWed, Jul 1
- Labour DayMon, Sep 7
- National Day for Truth and ReconciliationWed, Sep 30
- ThanksgivingMon, Oct 12
- Christmas DayFri, Dec 25
About these zones
Mountain Time is also known as MST, or MDT. To call United States, dial +1.
Newfoundland Time is also known as NST, or NDT. To call Canada, dial +1.
Newfoundland Time is approximately 2,600 miles northeast of Mountain Time.
Quick reference
Full 24-hour conversion table — tap any time to open it in the converter.
| MST | NST | Day |
|---|---|---|
| 12:00 am | 3:30 am | Same day |
| 1:00 am | 4:30 am | Same day |
| 2:00 am | 5:30 am | Same day |
| 3:00 am | 6:30 am | Same day |
| 4:00 am | 7:30 am | Same day |
| 5:00 am | 8:30 am | Same day |
| 6:00 am | 9:30 am | Same day |
| 7:00 am | 10:30 am | Same day |
| 8:00 am | 11:30 am | Same day |
| 9:00 am | 12:30 pm | Same day |
| 10:00 am | 1:30 pm | Same day |
| 11:00 am | 2:30 pm | Same day |
| 12:00 pm | 3:30 pm | Same day |
| 1:00 pm | 4:30 pm | Same day |
| 2:00 pm | 5:30 pm | Same day |
| 3:00 pm | 6:30 pm | Same day |
| 4:00 pm | 7:30 pm | Same day |
| 5:00 pm | 8:30 pm | Same day |
| 6:00 pm | 9:30 pm | Same day |
| 7:00 pm | 10:30 pm | Same day |
| 8:00 pm | 11:30 pm | Same day |
| 9:00 pm | 12:30 am | +1 day |
| 10:00 pm | 1:30 am | +1 day |
| 11:00 pm | 2:30 am | +1 day |
Daylight saving time
Both Mountain Time and Newfoundland Time observe daylight saving time and transition on the same date.
Next transition: Sunday, November 1, 2026 (fall back).
Because they transition simultaneously, the offset between these zones remains constant year-round.
See the daylight saving time page for transition dates across every time zone.
Daylight today
- Sunrise
- 5:34 AM
- Sunset
- 8:25 PM
- Day length
- 14h 51m
- Sunrise
- 5:06 AM
- Sunset
- 8:54 PM
- Day length
- 15h 48m
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
Related conversions
Common conversions
- What is 9:00 am MST in NST?
- 9:00 am MST is 12:30 pm NST.
- What is 12:00 pm MST in NST?
- 12:00 pm MST is 3:30 pm NST.
- What is 12:30 pm MST in NST?
- 12:30 pm MST is 4:00 pm NST.
- What is 2:00 pm MST in NST?
- 2:00 pm MST is 5:30 pm NST.
- What is 5:00 pm MST in NST?
- 5:00 pm MST is 8:30 pm NST.
- What is 11:30 pm MST in NST?
- 11:30 pm MST is 3:00 am NST, the next day.