MST to EDT Time Zone Converter — Mountain to Eastern

Convert between any time zones worldwide. Free and accurate time zone converter with DST support.

Edit time or date on either side — all cards update instantly.

From

UTC...

Mountain Standard Time

To Next day

UTC...

Eastern Standard Time

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Upcoming clock change (daylight saving)

To (Eastern Standard Time): Next DST change: November 1, 2026 — EDT shifts to EST (UTC-5)

MST to EDT Conversion Chart

Last updated: April 2026

Today's reference — every 3 hours. DST is applied automatically.

MST Time	EDT Time
12:00 AM	3:00 AM
3:00 AM	6:00 AM
6:00 AM	9:00 AM
9:00 AM	12:00 PM
12:00 PM	3:00 PM
3:00 PM	6:00 PM
6:00 PM	9:00 PM
9:00 PM	12:00 AM (+1 day)

Popular Timezone Conversions

CST to EST PST to EST MST to EST GMT to EST JST to EST GST to EST IST to EST EST to GMT

About MST to EDT Conversion

Last updated: April 2026

Converting time between MST and EST requires understanding their time zone offsets and any daylight saving time adjustments. MST (MST) operates at UTC-7, while EST (EDT) is set to UTC-4. This means EST is 3 hours ahead MST. Note that due to the time difference, the date may change. When it's 11:14 PM MST on May 1, 2026, it's 2:14 AM EDT on May 2, 2026 in EST. America/New_York observes daylight saving time, switching between EST (UTC-5) and EDT (UTC-4), while America/Phoenix does not observe daylight saving time. Use this converter to quickly find the equivalent time in EST for any time in MST, whether you're scheduling meetings, planning travel, or coordinating with teams across different time zones.

How to Use the Time Zone Converter

Last updated: April 2026

Select your source timezone from the "From timezone" dropdown (use search to find quickly)
Enter the date and time you want to convert (or click "Today" and "Now" for current time)
Select your target timezone from the "To timezone" dropdown
The conversion updates automatically as you change inputs - no button needed!
Use "Copy" button to copy the converted time, or use presets for quick conversions

More Conversions from MST

MST to CST MST to MDT MST to PST MST to AKST MST to HST MST to GMT MST to CET MST to EET MST to MSK MST to IST MST to JST MST to CST-CHINA MST to HKT MST to SGT MST to GST MST to AEST MST to AWST MST to NZST MST to UTC MST to ART MST to BRT MST to PHT MST to BDT MST to KST MST to SAST MST to ICT MST to EAT MST to WAT MST to PKT

Frequently Asked Questions

Last updated: April 2026

What US states use Eastern Time (EST/EDT)?

Eastern Time covers most of the US East Coast and parts of the Midwest border, including New York, Florida, Georgia, Pennsylvania, Ohio, North Carolina, Michigan, and others. A few states are split with Central Time at the western edge.

What is the time difference between MST and EDT?

The time difference between MST and EDT is 3 hours. EDT is 3 hours ahead MST.

Is EDT ahead of or behind MST?

EDT is ahead of MST by 3 hours. When it's 5 PM in MST, it's 8:00 PM in EDT.

How many hours do you add to MST to get EDT?

You add 3 hours to MST to get EDT. For example, 5 PM MST + 3 hours = 8:00 PM EDT.

Does the MST to EDT time difference change during Daylight Saving Time?

Yes, the time difference can change during Daylight Saving Time (DST). EDT observes DST, which can affect the time difference during the transition periods in spring and fall.

What is 5 PM MST in EDT?

5 PM MST is 8:00 PM EDT. This conversion accounts for the 3-hour time difference between the two timezones.

Is MST the same throughout the year when converting to EDT?

No, the conversion between MST and EDT can vary during the year due to Daylight Saving Time. The time difference may change by 1 hour during DST transition periods (typically March and November), so always use a current timezone converter for accurate conversions.

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