Convert MST to EDT

EDT is 3 hours ahead of MST. MST is UTC−7 and EDT is UTC−4.

Best time to schedule a meeting

Standard 9–5 working hours overlap for 5 hours: 9:00 AM–2:00 PM MST (12:00 PM–5:00 PM EDT). Schedule meetings inside that window.

MST to EDT conversion table

About MST

Mountain Standard Time (MST) is UTC−7. It is used in Denver and Salt Lake City in winter, and Phoenix all year.

About EDT

Eastern Daylight Time (EDT) is UTC−4. It is used in New York, Toronto, Miami and Atlanta from March to November.

A warning about daylight saving

The abbreviations on this page each denote a single fixed offset, so every figure here is exact. What changes is which abbreviation a place uses. New York is on EST in January and EDT in July, so "New York time" moves by an hour twice a year while EST and EDT themselves never move. When you schedule across zones, name the city rather than the abbreviation, or use UTC — that is what calendar software does internally.

Other MST conversions

• MST to UTC
• MST to GMT
• MST to EST
• MST to CST
• MST to CDT
• MST to MDT
• MST to PST
• MST to AKST
• MST to HST
• MST to BRT
• MST to BST
• MST to CET
• MST to CEST
• MST to EET
• MST to EEST
• MST to MSK

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