Convert Eastern Time (EST) to Mountain Time (MST). MST is 2 hours behind EST all year. Updated for the 2026 time zone changes and current daylight saving rules.
Need a city instead? Use the time zone converter.
| EST | MST |
|---|---|
| 12:00 AM | 10:00 PM (prev. day) |
| 1:00 AM | 11:00 PM (prev. day) |
| 2:00 AM | 12:00 AM |
| 3:00 AM | 1:00 AM |
| 4:00 AM | 2:00 AM |
| 5:00 AM | 3:00 AM |
| 6:00 AM | 4:00 AM |
| 7:00 AM | 5:00 AM |
| 8:00 AM | 6:00 AM |
| 9:00 AM | 7:00 AM |
| 10:00 AM | 8:00 AM |
| 11:00 AM | 9:00 AM |
| 12:00 PM | 10:00 AM |
| 1:00 PM | 11:00 AM |
| 2:00 PM | 12:00 PM |
| 3:00 PM | 1:00 PM |
| 4:00 PM | 2:00 PM |
| 5:00 PM | 3:00 PM |
| 6:00 PM | 4:00 PM |
| 7:00 PM | 5:00 PM |
| 8:00 PM | 6:00 PM |
| 9:00 PM | 7:00 PM |
| 10:00 PM | 8:00 PM |
| 11:00 PM | 9:00 PM |
This uses Eastern Time as in New York and Toronto. Since Nov 1, 2026, Manitoba (UTC−5 all year) is on the same time as EST from November to March, and Atikokan, Ontario stays on EST all year.
This uses Mountain Time as in Denver, which changes clocks. Arizona stays on MST (UTC−7) all year. Alberta no longer uses MST at all: since Nov 1, 2026 it stays at UTC−6, so in winter Calgary is an hour ahead of Denver. Yukon, Creston and BC’s Peace River region are at UTC−7 all year.
MST is 2 hours behind EST all year.
9:00 AM EST is 7:00 AM MST.
12:00 PM EST is 10:00 AM MST.
5:00 PM EST is 3:00 PM MST.
EST is often used loosely for Eastern Time all year. Strictly, EST is the winter time and EDT is the summer time, from the second Sunday in March to the first Sunday in November. The converter above shows the right one for the date you pick.
This uses Eastern Time as in New York and Toronto. Since Nov 1, 2026, Manitoba (UTC−5 all year) is on the same time as EST from November to March, and Atikokan, Ontario stays on EST all year.
This uses Mountain Time as in Denver, which changes clocks. Arizona stays on MST (UTC−7) all year. Alberta no longer uses MST at all: since Nov 1, 2026 it stays at UTC−6, so in winter Calgary is an hour ahead of Denver. Yukon, Creston and BC’s Peace River region are at UTC−7 all year.