Clockjumper

Timezone conversion

EST to MST Time — Convert Eastern Standard Time (US) to Mountain Standard Time (US)

MST is currently 2 hours behind EST. This offset stays the same all year — neither zone shifts for daylight saving in a way that changes it.

MST is currently 2 hours behind EST.

EST • EDT (UTC-4)
10:32 AM
Thursday, Sep 10
MST • MDT (UTC-6)
8:32 AM
Thursday, Sep 10

Abbreviation disambiguation

On Clockjumper, EST refers to Eastern Standard Time in the United States (UTC−5). The US East Coast observes EST in winter and switches to EDT (UTC−4) during daylight saving time.

MST is Mountain Standard Time (UTC−7). Most of the US Mountain zone switches to MDT (UTC−6) in summer, but Arizona (except the Navajo Nation) stays on MST year-round.

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Full EST to MST conversion table

ESTMST
12:00 AM10:00 PM(previous day)
1:00 AM11:00 PM(previous day)
2:00 AM12:00 AM
3:00 AM1:00 AM
4:00 AM2:00 AM
5:00 AM3:00 AM
6:00 AM4:00 AM
7:00 AM5:00 AM
8:00 AM6:00 AM
9:00 AM7:00 AM
10:00 AM8:00 AM
11:00 AM9:00 AM
12:00 PM10:00 AM
1:00 PM11:00 AM
2:00 PM12:00 PM
3:00 PM1:00 PM
4:00 PM2:00 PM
5:00 PM3:00 PM
6:00 PM4:00 PM
7:00 PM5:00 PM
8:00 PM6:00 PM
9:00 PM7:00 PM
10:00 PM8:00 PM
11:00 PM9:00 PM

Daylight saving and how the gap changes

The EST → MST offset stays constant across the year — neither zone shifts for daylight saving in a way that changes this gap.

Frequently asked questions

Is MST ahead of or behind EST right now?
MST is currently 2 hours behind EST.
What is the current EST to MST time difference?
Right now the gap is 2 hours — MST is 2 hours behind EST.
Does the EST → MST offset change during the year?
No. Neither Eastern Standard Time (US) nor Mountain Standard Time (US) shifts for daylight saving in a way that changes this offset — the gap is the same all year.
Does EST observe daylight saving time?
EST is itself the standard-time form. Eastern Standard Time (US) is in force at UTC-5 through the winter months; outside that window the same zone is on EDT (UTC-4).
Does MST observe daylight saving time?
MST is itself the standard-time form. Mountain Standard Time (US) is in force at UTC-7 through the winter months; outside that window the same zone is on MDT (UTC-6).
What time is 3 AM EST in MST?
3:00 AM EST is 1:00 AM MST.
What time is 8 AM EST in MST?
8:00 AM EST is 6:00 AM MST.
What time is 9 AM EST in MST?
9:00 AM EST is 7:00 AM MST.
What time is 10 AM EST in MST?
10:00 AM EST is 8:00 AM MST.
What time is 11 AM EST in MST?
11:00 AM EST is 9:00 AM MST.
What time is 12 PM (noon) EST in MST?
12:00 PM EST is 10:00 AM MST.
What time is 2 PM EST in MST?
2:00 PM EST is 12:00 PM MST.
What time is 3 PM EST in MST?
3:00 PM EST is 1:00 PM MST.
What time is 4 PM EST in MST?
4:00 PM EST is 2:00 PM MST.
What time is 5 PM EST in MST?
5:00 PM EST is 3:00 PM MST.
What time is 9 PM EST in MST?
9:00 PM EST is 7:00 PM MST.
What time is 10 PM EST in MST?
10:00 PM EST is 8:00 PM MST.
When is the best time to schedule a call between EST and MST?
The working-hours overlap (09:00–17:00 in both zones) runs roughly 11:00 AM – 5:00 PM EST (≈ 6 hours). The midpoint of that window — 2:00 PM EST, 12:00 PM MST — is the safest single slot to propose for a live call.
What time zone does EST refer to?
EST refers to Eastern Standard Time (US) (IANA: America/New_York).
What time zone does MST refer to?
MST refers to Mountain Standard Time (US) (IANA: America/Denver).
Is EST on this page the same as other zones that share the letters "EST"?
On Clockjumper, EST refers to Eastern Standard Time in the United States (UTC−5). The US East Coast observes EST in winter and switches to EDT (UTC−4) during daylight saving time.
Is MST on this page the same as other zones that share the letters "MST"?
MST is Mountain Standard Time (UTC−7). Most of the US Mountain zone switches to MDT (UTC−6) in summer, but Arizona (except the Navajo Nation) stays on MST year-round.

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