What is the time difference between UTC and MST?

Mountain Standard Time (MST) is 6 hours behind Coordinated Universal Time (UTC). UTC uses a UTC offset of UTC, while MST uses UTC-6. For example, when it's 9:00 AM in UTC, it's 3:00 AM in MST. Note that this difference may shift by one hour during daylight saving time transitions if MST observes DST. Use the conversion table above to see the exact time for each hour of the day.

How do I convert UTC to MST?

To convert UTC to MST, subtract 6 hours from the UTC time. For example, 9:00 AM UTC is 3:00 AM MST, and 5:00 PM UTC is 11:00 AM MST. Keep in mind that during daylight saving time transitions, the offset between these timezones may temporarily change by one hour. You can also use the interactive converter above for quick, accurate results.

What time is it in MST when it's noon in UTC?

When it's 12:00 PM (noon) in UTC, it's 6:00 AM in MST. This is because MST is 6 hours behind UTC. Similarly, when it's 6:00 PM in UTC, it's 12:00 PM in MST. During daylight saving time transitions, these times may shift by one hour, so always verify the current offset. The color-coded conversion table above shows every hour mapped between both timezones.

How many hours behind is MST from UTC?

MST is 6 hours behind UTC. This means when it's 9:00 AM in UTC, it's 3:00 AM in MST, and when it's midnight in UTC, it's 6:00 PM in MST. The exact difference can vary by one hour during daylight saving time transitions. The conversion table above provides a complete hour-by-hour mapping.

Is MST ahead or behind UTC?

MST is behind UTC by 6 hours. Clocks in MST show an earlier time than UTC, meaning the day starts later in MST relative to UTC. For example, when it's noon in UTC, it's still 6:00 AM in MST. This gap may change by one hour during DST transitions.

Does UTC observe daylight saving time?

No, Coordinated Universal Time does not observe daylight saving time. The UTC offset of UTC remains the same year-round, which simplifies time conversions. Regions using UTC keep their clocks unchanged regardless of the season.

Does MST observe daylight saving time?

Yes, Mountain Standard Time observes daylight saving time. During DST, the abbreviation changes to MDT and clocks move forward by one hour, typically in spring. Clocks then fall back in autumn, returning to standard MST time. This means the UTC offset for MST shifts between two values depending on the season. Check our DST change calendar for exact transition dates that may affect your UTC to MST conversions.

What is the best time to call from UTC to MST?

The best time for a call between UTC and MST is during overlapping business hours (9 AM – 5 PM) in both timezones. To reach someone in MST during their work day, call between 3:00 PM and 11:00 PM your UTC time. Avoid calling too early or late, as the 6 hours difference means your evening could be their early morning. Check the color-coded conversion table above — green hours indicate business hours in both zones, making it easy to find the ideal time.

When does daylight saving time change in MST?

Daylight saving time transitions vary by year and region. Mountain Standard Time observes DST, which typically shifts clocks forward by one hour in spring ("spring forward") and back in fall ("fall back"). During these transition periods, the time difference between UTC and MST may temporarily change by one hour, which can cause confusion for scheduled meetings or calls. It's important to double-check your conversions around transition dates, especially if the two timezones switch on different dates. Check our DST change calendar for exact transition dates in the current year.

Do UTC and MST ever have the same time?

No, UTC and MST never show the same time because their base UTC offsets are different. However, because MST observes daylight saving time and UTC does not, the time difference between them changes by one hour during DST transitions. This means the gap narrows or widens depending on the season, but the two clocks never align. Always verify the current offset around DST transition dates to avoid scheduling errors.

UTC to MST Converter

Convert Coordinated Universal Time to Mountain Standard Time. See the hour-by-hour conversion table below.

Timezone Details

UTC

7:09 AM

Friday, April 3, 2026

UTC (UTC+00:00)

Mountain Standard Time

1:09 AM

Friday, April 3, 2026

MDT (UTC-06:00)

Difference: -6 hours

MDT DST: Yes (MDT)

24-Hour Overview

UTC — 24-hour overview

12a12a

3a3a

6a6a

9a9a

10a

11a

12p12p

3p3p

6p6p

9p9p

10p

11p

NightMorningBusinessEvening

MDT — 24-hour overview

6p6p

9p9p

10p

11p

12a12a

3a3a

6a6a

9a9a

10a

11a

12p12p

3p3p

NightMorningBusinessEvening

Frequently Asked Questions

Related Conversions

MST to UTC MST to GMT GMT to MST

Cities in These Timezones

MST Cities

Denver

More Tools

Compare UTC & MST Plan a Meeting (UTC & MST)See on Map

Learn More

How Time Zones Work Understanding DST Timezone Abbreviations

External Resources

Coordinated Universal Time on Wikipedia Mountain Standard Time on Wikipedia IANA Time Zone Database