NST/NDT to MST/MDT time converter
MST/MDT is 3 hours 30 minutes behind NST/NDT. When it is 9:00 AM in NST/NDT, it is 5:30 AM in MST/MDT.
5:42 PM in NST/NDT, Friday, October 16, 2026
NST/NDT to MST/MDT conversion table
Every hour of today in NST/NDT and the matching time in MST/MDT. Light rows are typical working hours (9:00–18:00).
| NST/NDT | MST/MDT |
|---|---|
| 12:00 AM | 8:30 PM−1 day |
| 1:00 AM | 9:30 PM−1 day |
| 2:00 AM | 10:30 PM−1 day |
| 3:00 AM | 11:30 PM−1 day |
| 4:00 AM | 12:30 AM |
| 5:00 AM | 1:30 AM |
| 6:00 AM | 2:30 AM |
| 7:00 AM | 3:30 AM |
| 8:00 AM | 4:30 AM |
| 9:00 AM | 5:30 AM |
| 10:00 AM | 6:30 AM |
| 11:00 AM | 7:30 AM |
| 12:00 PM | 8:30 AM |
| 1:00 PM | 9:30 AM |
| 2:00 PM | 10:30 AM |
| 3:00 PM | 11:30 AM |
| 4:00 PM | 12:30 PM |
| 5:00 PM | 1:30 PM |
| 6:00 PM | 2:30 PM |
| 7:00 PM | 3:30 PM |
| 8:00 PM | 4:30 PM |
| 9:00 PM | 5:30 PM |
| 10:00 PM | 6:30 PM |
| 11:00 PM | 7:30 PM |
Best time to call or meet
Both sides are at work from 12:30 PM – 6:00 PM in NST/NDT (9:00 AM – 2:30 PM in MST/MDT).
Daylight saving time and the difference
The difference changes during the year because NST/NDT and MST/MDT switch clocks on different dates:
- Oct 16, 2026 – Nov 1, 2026: -3h 30m
- Nov 1, 2026 – Nov 1, 2026: -2h 30m
- Nov 1, 2026 – Mar 14, 2027: -3h 30m
- Mar 14, 2027 – Mar 14, 2027: -4h 30m
- Mar 14, 2027 – Oct 16, 2027: -3h 30m
More conversions
Questions and answers
What is the time difference between NST/NDT and MST/MDT?
MST/MDT is 3 hours 30 minutes behind NST/NDT.
What time is it in MST/MDT when it is 9 AM in NST/NDT?
When it is 9:00 AM in NST/NDT, it is 5:30 AM in MST/MDT.
When is the best time to call MST/MDT from NST/NDT?
Both sides are at work from 12:30 PM – 6:00 PM in NST/NDT (9:00 AM – 2:30 PM in MST/MDT).
Does the time difference between NST/NDT and MST/MDT change?
Yes, for part of the year, because daylight saving time starts and ends on different dates or applies on one side only.