MST to UTC
+7hMST
MSTSOURCEUTC
UTCGreen rows indicate typical business hours (9 AM - 5 PM)
MST and UTC on the World Map
The map below highlights the MST (Mountain Standard Time) and UTC (Coordinated Universal Time) timezone regions across the globe.
MST – Mountain Standard Time
UTC-07:00Mountain Standard Time (MST) is the time zone for the Mountain region of North America, 7 hours behind UTC.
- •Arizona does not observe daylight saving time, staying on MST year-round.
- •The Navajo Nation in Arizona does observe DST, unlike the rest of the state.
- •Denver, the 'Mile High City', is the largest city fully in MST.
- •MST covers 6 US states entirely and parts of several others.
UTC – Coordinated Universal Time
UTC+00:00Coordinated Universal Time (UTC) is the world's primary time standard, used as the basis for civil time worldwide.
- •UTC is the basis for all civil time zones worldwide.
- •The abbreviation 'UTC' is a compromise between English (CUT) and French (TUC).
- •UTC is based on atomic clocks and is accurate to within a nanosecond per day.
- •Servers and databases worldwide store timestamps in UTC to avoid timezone confusion.
- •Leap seconds are occasionally added to UTC to keep it aligned with Earth's rotation.
Understanding the +7h Gap: MST vs UTC
MST runs on Mountain Standard Time (MST) at UTC-07:00. UTC runs on Coordinated Universal Time (UTC) at UTC+00:00. That puts MST 7 hours ahead of UTC — a difference of +7h at the current offsets.
In practice, when it is 9:00 AM in MST it is 4:00 PM in UTC. Midnight in MST is 7:00 AM in UTC. Neither zone observes daylight saving time, so the offset between them stays constant all year.
MST to UTC time conversion table
| MST (MST) | UTC (UTC) | Day |
|---|---|---|
| 12:00 AM | 7:00 AM | same day |
| 6:00 AM | 1:00 PM | same day |
| 7:00 AM | 2:00 PM | same day |
| 8:00 AM | 3:00 PM | same day |
| 9:00 AM | 4:00 PM | same day |
| 12:00 PM | 7:00 PM | same day |
| 3:00 PM | 10:00 PM | same day |
| 5:00 PM | 12:00 AM | next day |
| 6:00 PM | 1:00 AM | next day |
| 9:00 PM | 4:00 AM | next day |
Why people convert MST to UTC time
- Scheduling a call from MST to UTC: a 10:00 AM start in MST lands at 5:00 PM in UTC, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both MST and UTC are inside the 9-to-5 working day between 9:00 AM and 10:00 AM MST time (4:00 PM–5:00 PM UTC). That is roughly 1 hours of usable overlap.
- Keeping family and friends in sync: knowing that 8:00 PM in MST is 3:00 AM in UTC makes it easy to avoid calling at 3 AM.
- Always state the zone abbreviation, not just the hour. "3:00 PM MST" is unambiguous; "3 PM" across a +7h gap is not.
- Block 9:00 AM–10:00 AM MST as the recurring meeting window if you work primarily from MST and need UTC colleagues present.
About MST (Mountain Standard Time)
Mountain Standard Time (MST) covers the Rocky Mountain region of the United States and Canada. Arizona is notable for not observing daylight saving time, staying on MST year-round (except the Navajo Nation). The time zone includes major cities like Denver, Phoenix, Calgary, and Salt Lake City. During summer, most areas switch to Mountain Daylight Time (MDT, UTC-06:00).
About UTC (Coordinated Universal Time)
Coordinated Universal Time (UTC) is the primary time standard by which the world regulates clocks and time. It is effectively the successor to GMT and is based on International Atomic Time with leap seconds added to keep it synchronized with Earth's rotation. UTC is used in aviation, computing, navigation, weather forecasting, and the International Space Station. Most programming languages and databases store timestamps in UTC.
Best time to call between MST and UTC
Both MST and UTC sit inside the 9 AM – 5 PM working day between 9:00 AM–10:00 AM MST, which is 4:00 PM–5:00 PM UTC. That gives roughly 1 hours of shared time — the safest window for a live call or meeting.
Business hours overlap
MST and UTC overlap for only 60 minutes (9:00 AM–10:00 AM MST), so meetings have to be booked precisely.
MST is 7 hours ahead of UTC (MST UTC-07:00 → UTC UTC+00:00). The shared working window is 9:00 AM–10:00 AM MST. Remember to re-check around daylight-saving transitions.
🕐 Daylight Saving Time Info
MST
☀ Currently in DST
Standard: UTC-07:00 · DST: UTC-06:00
Clocks fall back on Sun, Nov 1, 2026
UTC
Does not observe DST
Learn More About Time
Dive deeper into the fascinating world of timekeeping, time zones, and how they shape our global society:
Frequently Asked Questions
What is the time difference between MST and UTC?
MST (MST, UTC-07:00) is 7 hours ahead of UTC (UTC, UTC+00:00). The gap is currently +7h.
How do I convert MST time to UTC time?
Add +7h to MST local time. For example, 9:00 AM in MST is 4:00 PM in UTC.
What time is it in UTC right now?
UTC uses UTC at UTC+00:00. Use the live converter at the top of this page — it updates in real time and already accounts for the +7h offset from MST.
What is the best time to call UTC from MST?
Call between 9:00 AM and 10:00 AM MST — that maps to 4:00 PM–5:00 PM UTC and keeps both parties inside the working day.
Which is ahead, MST or UTC?
MST is 7 hours ahead of UTC. When it is 12:00 PM in MST it is 7:00 PM in UTC.
Does daylight saving time affect the MST–UTC difference?
Neither zone observes daylight saving time, so the +7h offset between MST and UTC is fixed all year.
Which other cities share MST's time zone?
MST also covers Denver, Phoenix, Salt Lake City, Calgary, Edmonton, Albuquerque, El Paso, Tucson and 2 more.
Which countries use MST, MST's zone?
MST is used in United States (Mountain), Canada (Alberta), Mexico (Chihuahua, Sonora).
Is there a day difference between MST and UTC?
Not normally. The +7h gap only pushes the date over for late-evening times.
What is the time difference between MST and UTC?
UTC is +7h from MST.
What timezone is MST in?
MST operates on its local timezone.
What timezone is UTC in?
UTC operates on its local timezone.
Which countries use MST (Mountain Standard Time)?
MST is used in United States (Mountain), Canada (Alberta), Mexico (Chihuahua, Sonora).
Does MST observe daylight saving time?
Yes, MST switches to MDT during summer months.
What are some interesting facts about MST?
Arizona does not observe daylight saving time, staying on MST year-round. The Navajo Nation in Arizona does observe DST, unlike the rest of the state.
Which cities are in the UTC timezone?
Major cities in the UTC timezone include London, Dublin, Reykjavik, Accra, Lisbon, Dakar.
What is the UTC offset for UTC?
Coordinated Universal Time (UTC) is at UTC+00:00.
What should I know about the UTC timezone?
UTC is the basis for all civil time zones worldwide. The abbreviation 'UTC' is a compromise between English (CUT) and French (TUC).
When is it midnight in MST, what time is it in UTC?
When it is 12:00 AM (midnight) in MST (MST), it is +7h later in UTC (UTC).
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