MST to EST Converter
Eastern Time is 2 hours ahead of Mountain Time. Enter a time to convert, or see the current time in both zones.
Enter a valid date and time.
What is the time difference between MST and EST?
What is the time difference between MST and EST? Eastern Time is 2 hours ahead of Mountain Time. Most of Arizona stays on MST all year, so from March to November Arizona is 3 hours behind Eastern Time. Choose America/Phoenix in the converter for Arizona.
Standard and daylight time in Mountain Time and Eastern Time
Strictly, MST and EST are the winter (standard) names. In summer the zones use daylight time names such as MDT and EDT. People often say "MST" all year, so this page converts using the real rules for each date: America/Denver and America/New_York in the IANA time zone database.
Frequently asked questions
Does daylight saving change the MST to EST difference?
Most of Arizona stays on MST all year, so from March to November Arizona is 3 hours behind Eastern Time. Choose America/Phoenix in the converter for Arizona.
Which time zone database is used?
Your browser's built-in copy of the IANA time zone database, which is updated with browser releases.
More time zones
See all- Time Zone ConverterConvert any time between any two zones.
- CST to ESTCentral Time to Eastern Time, with DST handled.
- EST to PSTEastern Time to Pacific Time, with DST handled.
- EST to CSTEastern Time to Central Time, with DST handled.
- PST to CSTPacific Time to Central Time, with DST handled.
- UTC to ESTCoordinated Universal Time to Eastern Time, with DST handled.
- CST to PSTCentral Time to Pacific Time, with DST handled.
- EST to GMTEastern Time to Greenwich Mean Time, with DST handled.