This MST to EST converter turns any time in Mountain Standard Time (MST) into Eastern Standard Time (EST), using your device clock so daylight saving is applied automatically. EST is 2 hours ahead of MST. MST is UTC−7 (MDT: UTC−6); EST is UTC−5 (EDT: UTC−4).
MST covers Denver, Salt Lake City, Phoenix (no DST); EST covers New York, Toronto, Miami. Because both zones change their clocks on different dates, the difference is not constant through the year. The tables below show both cases, and the converter at the top always uses the rule in force on the date you pick.
MST and EST UTC offsets
MST
UTC−7
Mountain Standard Time
MDT UTC−6 from March 8 to November 1, 2026
EST
UTC−5
Eastern Standard Time
EDT UTC−4 from March 8 to November 1, 2026
MST to EST conversion table
| MST | EST |
|---|---|
| 12 am | 2 am |
| 3 am | 5 am |
| 6 am | 8 am |
| 8 am | 10 am |
| 9 am | 11 am |
| 10 am | 12 pm |
| 11 am | 1 pm |
| 12 pm | 2 pm |
| 1 pm | 3 pm |
| 2 pm | 4 pm |
| 3 pm | 5 pm |
| 4 pm | 6 pm |
| 5 pm | 7 pm |
| 6 pm | 8 pm |
| 8 pm | 10 pm |
| 10 pm | 12 amnext day |
Frequently asked questions
What is the time difference between MST and EST?
EST is 2 hours ahead of MST. That comes from the UTC offsets: MST is UTC−7 and EST is UTC−5. For example, 9 am MST = 11 am EST.
Is EST ahead of or behind MST?
EST is 2 hours ahead of MST, so when it is noon in MST it is 2 pm in EST. Ahead means the clock there already shows a later time; a call at 5 pm MST lands at 7 pm EST.
Does MST or EST observe daylight saving time in 2026?
MST switches to MDT (UTC−6) on March 8 and back on November 1 in 2026. EST switches to EDT (UTC−4) on March 8 and back on November 1. Between those dates the difference in the table above shifts by an hour, which is the usual cause of missed calls in spring and autumn.
What is the best time for a meeting between MST and EST?
Standard office hours (9 am to 5 pm) overlap from 9 am to 3 pm MST, which is 11 am to 5 pm EST. Pick a slot inside that window and both sides stay within a normal working day. Check the daylight saving dates above, because the window moves by an hour when only one side has changed clocks.
Which cities use MST and EST?
MST (Mountain Standard Time) is used in Denver, Salt Lake City, Phoenix (no DST). EST (Eastern Standard Time) is used in New York, Toronto, Miami, Atlanta. Some cities inside a zone skip daylight saving, noted in parentheses, so their offset matches only part of the year.