MST to CAT
+9hMST
MSTSOURCECAT
CATGreen rows indicate typical business hours (9 AM - 5 PM)
MST and CAT on the World Map
The map below highlights the MST (Mountain Standard Time) and CAT (Central Africa 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.
CAT – Central Africa Time
UTC+02:00Central Africa Time (CAT, UTC+02:00) covers Zimbabwe, Zambia, Mozambique, Malawi and neighbouring countries.
- •Central Africa Time is fixed at UTC+02:00 with no daylight saving.
- •CAT matches South Africa Standard Time (SAST) all year.
- •It is the same offset as Central European Time in winter.
- •Harare is level with Johannesburg and one hour ahead of Lagos.
MST vs CAT: Offsets, DST and Best Call Times
MST runs on Mountain Standard Time (MST) at UTC-07:00. CAT runs on Central Africa Time (CAT) at UTC+02:00. That puts MST 9 hours ahead of CAT — a difference of +9h at the current offsets.
In practice, when it is 9:00 AM in MST it is 6:00 PM in CAT. Midnight in MST is 9:00 AM in CAT. Neither zone observes daylight saving time, so the offset between them stays constant all year.
MST to CAT time conversion table
| MST (MST) | CAT (CAT) | Day |
|---|---|---|
| 12:00 AM | 9:00 AM | same day |
| 6:00 AM | 3:00 PM | same day |
| 7:00 AM | 4:00 PM | same day |
| 8:00 AM | 5:00 PM | same day |
| 9:00 AM | 6:00 PM | same day |
| 12:00 PM | 9:00 PM | same day |
| 3:00 PM | 12:00 AM | next day |
| 5:00 PM | 2:00 AM | next day |
| 6:00 PM | 3:00 AM | next day |
| 9:00 PM | 6:00 AM | next day |
Why people convert MST to CAT time
- Scheduling a call from MST to CAT: a 10:00 AM start in MST lands at 7:00 PM in CAT, so you can confirm the slot without doing the arithmetic yourself.
- Handling a +9h gap: MST and CAT have no overlap inside a normal 9-to-5 day, so real-time meetings need an early-morning or late-evening slot on one side. 9:00 AM in CAT is 6:00 PM in MST.
- Coordinating a MST-based team with CAT contacts: quoting times in the other side's local clock — not your own — removes the single biggest source of missed meetings.
- Always state the zone abbreviation, not just the hour. "3:00 PM MST" is unambiguous; "3 PM" across a +9h gap is not.
- With a +9h gap there is no shared 9-to-5 window, so alternate the early start: one week MST takes the early slot, the next week CAT does.
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 CAT (Central Africa Time)
Central Africa Time (CAT) is fixed at UTC+02:00 all year across a broad belt of southern and central Africa, including Zimbabwe, Zambia, Mozambique, Malawi, Rwanda, Burundi and the eastern Democratic Republic of the Congo. None of these countries observes daylight saving time, so CAT never shifts. It is the same offset as South Africa Standard Time (SAST) and the winter version of Central European Time, which makes CAT a convenient bridge between African, European and Middle Eastern schedules — Harare is level with Johannesburg all year and one hour ahead of Lagos.
Best time to call between MST and CAT
With a +9h offset there is no overlap inside a normal 9 AM – 5 PM day. CAT opens at 9:00 AM CAT, which is 6:00 PM in MST, so real-time calls need an early-morning or late-evening slot on one side.
Business hours overlap
MST and CAT have no shared working hours because of the +9h gap. Teams need to alternate early starts or rely on asynchronous handovers.
MST is 9 hours ahead of CAT (MST UTC-07:00 → CAT UTC+02:00). There is no shared 9-to-5 window, so plan around an early or late slot. 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
CAT
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 CAT?
MST (MST, UTC-07:00) is 9 hours ahead of CAT (CAT, UTC+02:00). The gap is currently +9h.
How do I convert MST time to CAT time?
Add +9h to MST local time. For example, 9:00 AM in MST is 6:00 PM in CAT.
What time is it in CAT right now?
CAT uses CAT at UTC+02:00. Use the live converter at the top of this page — it updates in real time and already accounts for the +9h offset from MST.
What is the best time to call CAT from MST?
There is no shared working-hours window because of the +9h gap. The closest option is 1:00 PM in MST, which is 10:00 PM in CAT.
Which is ahead, MST or CAT?
MST is 9 hours ahead of CAT. When it is 12:00 PM in MST it is 9:00 PM in CAT.
Does daylight saving time affect the MST–CAT difference?
Neither zone observes daylight saving time, so the +9h offset between MST and CAT 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 CAT?
Not normally. The +9h gap only pushes the date over for late-evening times.
What is the time difference between MST and CAT?
CAT is +9h from MST.
What timezone is MST in?
MST operates on its local timezone.
What timezone is CAT in?
CAT 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 CAT timezone?
Major cities in the CAT timezone include Harare, Lusaka, Maputo, Lilongwe, Kigali.
What is the UTC offset for CAT?
Central Africa Time (CAT) is at UTC+02:00.
What should I know about the CAT timezone?
Central Africa Time is fixed at UTC+02:00 with no daylight saving. CAT matches South Africa Standard Time (SAST) all year.
When is it midnight in MST, what time is it in CAT?
When it is 12:00 AM (midnight) in MST (MST), it is +9h later in CAT (CAT).
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