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Time Zone Converter

MST to ETTime Converter

Convert Mountain Standard Time to Eastern Time, compare their live UTC offsets and explore a complete 24-hour conversion table.

Live clocksDST aware24-hour table

Live comparison

Current local times

From

MST

Mountain Standard Time

To

ET

Eastern Time

Enter a local date and time using MST.

MST

5:21 PM

Wednesday, August 12, 2026

UTC-07:00Fixed offset
ET

8:21:00 PM

Wednesday, August 12, 2026

UTC-04:00Seasonal zone

Time difference

ET is 3 hours ahead of MST

Hourly comparison

24-hour conversion table

Compare each hour in MST with ET.

24 hours
HourMSTETDifference
0

5:21 PM

Wednesday, August 12, 2026

8:21:00 PM

Wednesday, August 12, 2026

+3h
1

6:21 PM

Wednesday, August 12, 2026

9:21:00 PM

Wednesday, August 12, 2026

+3h
2

7:21 PM

Wednesday, August 12, 2026

10:21:00 PM

Wednesday, August 12, 2026

+3h
3

8:21 PM

Wednesday, August 12, 2026

11:21:00 PM

Wednesday, August 12, 2026

+3h
4

9:21 PM

Wednesday, August 12, 2026

12:21:00 AM

Thursday, August 13, 2026

+3h
5

10:21 PM

Wednesday, August 12, 2026

1:21:00 AM

Thursday, August 13, 2026

+3h
6

11:21 PM

Wednesday, August 12, 2026

2:21:00 AM

Thursday, August 13, 2026

+3h
7

12:21 AM

Thursday, August 13, 2026

3:21:00 AM

Thursday, August 13, 2026

+3h
8

1:21 AM

Thursday, August 13, 2026

4:21:00 AM

Thursday, August 13, 2026

+3h
9

2:21 AM

Thursday, August 13, 2026

5:21:00 AM

Thursday, August 13, 2026

+3h
10

3:21 AM

Thursday, August 13, 2026

6:21:00 AM

Thursday, August 13, 2026

+3h
11

4:21 AM

Thursday, August 13, 2026

7:21:00 AM

Thursday, August 13, 2026

+3h
12

5:21 AM

Thursday, August 13, 2026

8:21:00 AM

Thursday, August 13, 2026

+3h
13

6:21 AM

Thursday, August 13, 2026

9:21:00 AM

Thursday, August 13, 2026

+3h
14

7:21 AM

Thursday, August 13, 2026

10:21:00 AM

Thursday, August 13, 2026

+3h
15

8:21 AM

Thursday, August 13, 2026

11:21:00 AM

Thursday, August 13, 2026

+3h
16

9:21 AM

Thursday, August 13, 2026

12:21:00 PM

Thursday, August 13, 2026

+3h
17

10:21 AM

Thursday, August 13, 2026

1:21:00 PM

Thursday, August 13, 2026

+3h
18

11:21 AM

Thursday, August 13, 2026

2:21:00 PM

Thursday, August 13, 2026

+3h
19

12:21 PM

Thursday, August 13, 2026

3:21:00 PM

Thursday, August 13, 2026

+3h
20

1:21 PM

Thursday, August 13, 2026

4:21:00 PM

Thursday, August 13, 2026

+3h
21

2:21 PM

Thursday, August 13, 2026

5:21:00 PM

Thursday, August 13, 2026

+3h
22

3:21 PM

Thursday, August 13, 2026

6:21:00 PM

Thursday, August 13, 2026

+3h
23

4:21 PM

Thursday, August 13, 2026

7:21:00 PM

Thursday, August 13, 2026

+3h
Source time zone

About MST

The fixed standard-time offset used in parts of North America.

Full name
Mountain Standard Time
Type
Fixed UTC offset
Regions
United States, Canada, Mexico
View MST details
Target time zone

About ET

A seasonal North American time zone that automatically switches between EST and EDT.

Full name
Eastern Time
Type
Seasonal IANA time zone
Regions
United States, Canada
View ET details

Reverse this conversion

Convert ET back to MST.

ET to MST
FAQ

MST to ET time FAQ

Common questions about converting Mountain Standard Time to Eastern Time, their UTC offsets and daylight-saving behavior.

What is the time difference between MST and ET?

ET is 3 hours ahead of MST on this date.

What time is 9:00 AM MST in ET?

When it is 9:00 AM in MST, it is 12:00:00 PM in ET on Wednesday, August 12, 2026.

Is ET ahead of MST?

Yes. ET is currently 3 hours ahead of MST.

Do MST and ET use daylight saving time?

MST is defined as a fixed UTC offset. Its offset does not change automatically according to the selected date. ET is represented by the IANA time zone America/New_York. Its active offset can change according to the date and daylight-saving rules.

Where are MST and ET used?

MST is associated with United States, Canada, Mexico. ET is associated with United States, Canada. Time-zone abbreviations can be ambiguous, so TimeInOne uses the specific definitions shown on this page.