EST to MST — Time Zone Converter
Eastern Time (EST, UTC−5) covers the US East Coast; Mountain Time (MST, UTC−7) covers the US Mountain states. In standard time, MST is 2 hours behind EST. With only a small offset, working hours in the US East Coast and the US Mountain states overlap for most of the day — scheduling is easy. Use the live converter below — it applies today's IANA time zone data, including daylight saving time, and gives you a meeting schedule you can paste straight into email or Slack.
EST to MST, hour by hour (today)
Frequently asked questions
What is the time difference between EST and MST?+
Eastern Time (EST) is UTC−5 and Mountain Time (MST) is UTC−7, so in standard time MST is 2 hours behind EST. The gap shifts by an hour around daylight saving transitions, so always check a live converter near the change dates in spring and autumn.
Does EST or MST observe daylight saving time?+
Eastern Time observes daylight saving time (EST in winter, EDT in summer). Mountain Time observes daylight saving time (MST in winter, MDT in summer).
What is the best time for a meeting between EST and MST?+
With only a small offset, working hours in the US East Coast and the US Mountain states overlap for most of the day — scheduling is easy. The converter above highlights office hours in green for both zones, so you can slide to a time that works for everyone.
How do I share a EST to MST meeting time by email?+
Pick a time in the converter, log it to the Smart Clipboard, and copy it as bullets, a formatted table, or a one-line question — with both EST and MST times spelled out so nobody has to do the math.