Time zone converter/MST to EST
MST to EST Converter
Eastern Standard Time (EST) is 2 hours ahead of Mountain Standard Time (MST). To convert MST to EST, add 2 hours.
11 AM Mountain Time = 1 PM Eastern Time
- 8:00 AM MST→10:00 AM EST
- 9:00 AM MST→11:00 AM EST
- 10:00 AM MST→12:00 PM EST
- 11:00 AM MST→1:00 PM EST
- 1:00 PM MST→3:00 PM EST
- 2:00 PM MST→4:00 PM EST
- 5:00 PM MST→7:00 PM EST
EST = MST + 2 hours · MST = EST − 2 hours
From
Mountain Standard Time (MST)
—
To
Eastern Standard Time (EST)
—
The converted time appears in the result below.
Calculating time difference
Pick a date and time above.
EST = MST + 2 hours · MST = EST − 2 hours
MST and EST stay on standard time all year — they don’t switch for daylight saving. Use MT to ET when you want Mountain Time (Denver) to Eastern Time for a specific day, including MDT or EDT when local clocks are on daylight time.
MST to EST Conversion Table
Every hour of the day. Highlighted rows are common conversions. If you see +1 next to EST, that Eastern time falls on the next calendar day.
| MST | EST | Note |
|---|---|---|
| 12:00 AM MST | 2:00 AM EST | — |
| 1:00 AM MST | 3:00 AM EST | — |
| 2:00 AM MST | 4:00 AM EST | — |
| 3:00 AM MST | 5:00 AM EST | — |
| 4:00 AM MST | 6:00 AM EST | — |
| 5:00 AM MST | 7:00 AM EST | — |
| 6:00 AM MST | 8:00 AM EST | — |
| 7:00 AM MST | 9:00 AM EST | — |
| 8:00 AM MST | 10:00 AM EST | Popular |
| 9:00 AM MST | 11:00 AM EST | Popular |
| 10:00 AM MST | 12:00 PM EST | Popular |
| 11:00 AM MST | 1:00 PM EST | Popular |
| 12:00 PM MST | 2:00 PM EST | — |
| 1:00 PM MST | 3:00 PM EST | Popular |
| 2:00 PM MST | 4:00 PM EST | Popular |
| 3:00 PM MST | 5:00 PM EST | — |
| 4:00 PM MST | 6:00 PM EST | — |
| 5:00 PM MST | 7:00 PM EST | Popular |
| 6:00 PM MST | 8:00 PM EST | — |
| 7:00 PM MST | 9:00 PM EST | — |
| 8:00 PM MST | 10:00 PM EST | — |
| 9:00 PM MST | 11:00 PM EST | — |
| 10:00 PM MST | 12:00 AM EST +1 | Next day |
| 11:00 PM MST | 1:00 AM EST +1 | Next day |
Popular MST to EST Conversions
Quick answers for the times people look up most between Mountain and Eastern — as MST/EST, or as everyday Mountain Time to Eastern Time.
11 AM Mountain Time to Eastern Time
11:00 AM Mountain Time is normally 1:00 PM Eastern Time. Add two hours — the everyday Mountain to Eastern gap matches the MST to EST rule almost every day of the year.
10 AM MST to EST
10:00 AM MST is 12:00 PM EST. Add two hours and you are on Eastern. On everyday clocks, 10 AM Mountain Time is normally 12 PM Eastern Time too.
1 PM MST to EST
1:00 PM MST is 3:00 PM EST. Early afternoon Mountain lands mid-afternoon on the East Coast — still just add two hours.
2 PM MST to EST
2:00 PM MST is 4:00 PM EST. Mid-afternoon Mountain is late afternoon Eastern, and the same step works in reverse: 4 PM EST is 2 PM MST.
8 AM MST to EST
8:00 AM MST is 10:00 AM EST. A normal Mountain start is mid-morning on the East Coast — a good window for calls that work in both regions.
9 AM MST to EST
9:00 AM MST is 11:00 AM EST. Mid-morning Mountain is late morning Eastern, still a two-hour add.
5 PM Mountain Time to Eastern Time
5:00 PM Mountain Time is normally 7:00 PM Eastern Time. End-of-day Mountain is evening on the East Coast — fine for a quick check-in, late for a full meeting.
Mountain Time to Eastern Time
Mountain Time is normally 2 hours behind Eastern Time. For example, 11 AM Mountain Time is normally 1 PM Eastern Time. Day to day, MT to ET usually follows that same two-hour gap. On the map, that is Denver to New York: 11 AM in Denver is 1 PM in New York.
MT means Mountain Time (Denver) — MST in winter, MDT in summer. ET means Eastern Time — EST in winter, EDT in summer. If a meeting invite only says “Mountain” or “Eastern,” pick the meeting date so the result matches what local clocks show that day.
Denver and New York change clocks on the same spring and fall dates, so MT to ET stays a 2-hour gap on almost every day of the year. The odd combinations come from mixing labels — MST with EDT is 3 hours apart, and MDT with EST is only 1 hour apart. That is why MT → ET uses the date you pick instead of always adding 2 hours.
Use MST → EST when both sides should stay on standard time, even in July. Use MT → ET when you want Mountain and Eastern local time for the day you pick, including MDT or EDT in summer.
Mountain Time here follows the Denver clock. Arizona stays on MST through the summer and does not change for daylight saving — choose Arizona if that is the place you mean.
What Is the Time Difference Between MST and EST?
EST is 2 hours ahead of MST, and MST is 2 hours behind EST. Mountain Standard Time is UTC−7 and Eastern Standard Time is UTC−5, so add 2 hours when converting MST to EST. That gap stays the same all year as long as both sides are on standard time.
- MST = UTC−7
- EST = UTC−5
- EST = MST + 2 hours
- MST = EST − 2 hours
Example: 8 AM MST is 10 AM EST. 1 PM MST is 3 PM EST. Subtract two hours to go from EST back to MST.
MST/EST vs MT/ET: What’s the Difference?
| Term | Meaning |
|---|---|
| MST | Mountain Standard Time · UTC−7 |
| MDT | Mountain Daylight Time · UTC−6 |
| MT | Mountain Time · MST or MDT |
| EST | Eastern Standard Time · UTC−5 |
| EDT | Eastern Daylight Time · UTC−4 |
| ET | Eastern Time · EST or EDT |
Most of the US Mountain region around Denver and the whole Eastern zone change clocks in the same weeks of spring and fall. So everyday Mountain Time to Eastern Time usually stays two hours apart in winter and in summer. What changes is the name on the clock: MST/EST in standard time, MDT/EDT in daylight time.
On a January workday, 11 AM MST is 1 PM EST. On a July workday, 11 AM MDT is 1 PM EDT — still two hours, different names. MST to EST always uses standard time, even in July. Mountain Time to Eastern Time follows the date you enter and shows MDT or EDT when local clocks are on daylight time.
Mountain Time here means the Denver clock. Arizona stays on MST in summer and does not change for daylight saving — choose Arizona if that is the place you mean.
Use MST → EST when both times should stay on standard time, all year. Use MT → ET when you want Mountain and Eastern local time for the date you pick.
Current Mountain and Eastern Time
Mountain Time (Denver) and Eastern Time right now, with the name each region is using this season. The MST and EST cards below always stay on standard time, even when local clocks show MDT or EDT.
Mountain Time (Denver)
--:--
MT
Eastern Time
--:--
ET
MST
UTC−7
Standard time all year
EST
UTC−5
Standard time all year
Mountain to Eastern Time Meeting Planner
Workday hours on standard time. Highlighted rows are easier on both sides — roughly 8 AM to 3 PM Mountain / 10 AM to 5 PM Eastern. For a summer meeting on local Mountain and Eastern time, switch to MT → ET and choose the meeting date.
| Mountain | Eastern | For calls |
|---|---|---|
| 8:00 AM | 10:00 AM | Works well for both (8 AM Mountain / 10 AM Eastern) |
| 9:00 AM | 11:00 AM | Works well for both (9 AM / 11 AM Eastern) |
| 10:00 AM | 12:00 PM | Works well for both (10 AM / noon Eastern) |
| 11:00 AM | 1:00 PM | Works well for both (11 AM / 1 PM Eastern) |
| 12:00 PM | 2:00 PM | Works well for both (noon / 2 PM Eastern) |
| 1:00 PM | 3:00 PM | Works well for both (1 PM / 3 PM Eastern) |
| 2:00 PM | 4:00 PM | Works well for both (2 PM / 4 PM Eastern) |
| 3:00 PM | 5:00 PM | End of the workday for Eastern (3 PM / 5 PM Eastern) |
| 4:00 PM | 6:00 PM | Past work hours for Eastern (4 PM / 6 PM Eastern) |
| 5:00 PM | 7:00 PM | Late for Eastern (5 PM Mountain / 7 PM Eastern) |
EST to MST Converter
Going the other way? Subtract 2 hours from an EST time to get MST.
About These Time Zones
Open a zone page for the fixed abbreviation, or the regional clock that follows daylight saving for the date you pick.
MST to EST FAQ
- What is 11 AM Mountain Time in Eastern Time?
- 11 AM Mountain Time is normally 1 PM Eastern Time. Everyday Mountain to Eastern follows the same 2-hour gap as MST to EST.
- What is 10 AM MST in EST?
- 10 AM MST is 12 PM EST. Add 2 hours. On everyday clocks, 10 AM Mountain Time is normally 12 PM Eastern Time too.
- What is 1 PM MST in EST?
- 1 PM MST is 3 PM EST. Subtract 2 hours to go back: 3 PM EST is 1 PM MST.
- What is 2 PM MST in EST?
- 2 PM MST is 4 PM EST. Going the other way, 4 PM EST is 2 PM MST.
- What is 12 PM Mountain Time in Eastern Time?
- 12 PM Mountain Time is normally 2 PM Eastern Time. On standard time, 12 PM MST is 2 PM EST — add 2 hours.
- How many hours is EST ahead of MST?
- Two hours. MST is UTC−7 and EST is UTC−5, so EST = MST + 2 hours and MST = EST − 2 hours.
- How do I convert MST to EST?
- Add 2 hours (EST = MST + 2; MST = EST − 2). Examples: 8 AM MST → 10 AM EST; 1 PM MST → 3 PM EST.
- What is MT to ET?
- MT to ET converts everyday Mountain Time to everyday Eastern Time — MST or MDT on the Mountain side, EST or EDT on the Eastern side. It follows the date you pick, so a summer date uses MDT and EDT and a winter date uses MST and EST.
- What is the difference between MST/EST and MT/ET?
- MST and EST always mean standard time (UTC−7 and UTC−5). MT and ET are everyday Mountain and Eastern time — standard in winter, daylight in summer. Use MST → EST when both sides should stay on standard time; use MT → ET when you care about a specific day.
- Does the converter account for daylight saving time?
- MST → EST stays on standard time all year and does not flip for daylight saving. Switch to MT → ET and pick a date when you want Mountain Time (Denver) and Eastern Time for that day, including MDT or EDT in summer.