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What is 1 AM EST in MST?

Eastern Time

1 AM

Mountain Time

11 PM

1 AM Eastern Time is 11 PM Mountain Time the previous day.

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Is it the same all year?

Yes. 1 AM EST is always 11 PM MST the previous day, because both change their clocks on the same dates.

Eastern Time switches between EST and EDT for daylight saving time; people often say EST all year. Mountain Time switches between MST and MDT for daylight saving time; people often say MST all year.

Questions

What is 1 AM EST in MST?

1 AM Eastern Time is 11 PM Mountain Time the previous day.

Is MST ahead of or behind EST?

Mountain Time is currently 2 hours behind Eastern Time.

What about daylight saving time?

Eastern Time switches between EST and EDT for daylight saving time; people often say EST all year. Mountain Time switches between MST and MDT for daylight saving time; people often say MST all year. The times on this page follow the clocks actually in use on each date.

1 AM EST in other time zones

Time zone	Time
Central Time CST/CDT	12 AM
Mountain Time MST/MDT	11 PM (Tue)
Pacific Time PST/PDT	10 PM (Tue)
Alaska Time AKST/AKDT	9 PM (Tue)
Hawaii Time HST	7 PM (Tue)
Greenwich Mean Time GMT	5 AM
Coordinated Universal Time UTC	5 AM
Central European Time CET/CEST	7 AM
Eastern European Time EET/EEST	8 AM
India Standard Time IST	10:30 AM
Japan Standard Time JST	2 PM
Australian Eastern Time AEST/AEDT	4 PM
Singapore Time SGT	1 PM
Philippine Time PHT	1 PM
Moscow Time MSK	8 AM
Gulf Standard Time GST	9 AM

Based on the clocks on Wednesday, October 14, 2026.

What is 1 AM EST in MST?

Convert another time

Is it the same all year?

Questions

1 AM EST in other time zones

Other times, EST to MST