MST to CDT
+2hMST
MSTSOURCECDT
CDTGreen rows indicate typical business hours (9 AM - 5 PM)
MST and CDT on the World Map
The map below highlights the MST (Mountain Standard Time) and CDT (Central Daylight 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.
CDT – Central Daylight Time
UTC-05:00Central Daylight Time (CDT) is the daylight saving offset in the Central Time Zone, 5 hours behind UTC.
- •CDT is the same offset as EST (UTC-05:00), which can cause confusion.
- •CDT runs from the second Sunday in March to the first Sunday in November.
Everything You Need to Know About MST and CDT Time
MST runs on Mountain Standard Time (MST) at UTC-07:00. CDT runs on Central Daylight Time (CDT) at UTC-05:00. That puts MST 2 hours ahead of CDT — a difference of +2h at the current offsets.
In practice, when it is 9:00 AM in MST it is 11:00 AM in CDT. Midnight in MST is 2:00 AM in CDT. Neither zone observes daylight saving time, so the offset between them stays constant all year.
MST to CDT time conversion table
| MST (MST) | CDT (CDT) | Day |
|---|---|---|
| 12:00 AM | 2:00 AM | same day |
| 6:00 AM | 8:00 AM | same day |
| 7:00 AM | 9:00 AM | same day |
| 8:00 AM | 10:00 AM | same day |
| 9:00 AM | 11:00 AM | same day |
| 12:00 PM | 2:00 PM | same day |
| 3:00 PM | 5:00 PM | same day |
| 5:00 PM | 7:00 PM | same day |
| 6:00 PM | 8:00 PM | same day |
| 9:00 PM | 11:00 PM | same day |
Why people convert MST to CDT time
- Scheduling a call from MST to CDT: a 10:00 AM start in MST lands at 12:00 PM in CDT, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both MST and CDT are inside the 9-to-5 working day between 9:00 AM and 3:00 PM MST time (11:00 AM–5:00 PM CDT). That is roughly 6 hours of usable overlap.
- Booking travel or deliveries: tracking CDT local time against MST keeps pickup windows and arrival estimates honest across the +2h offset.
- Always state the zone abbreviation, not just the hour. "3:00 PM MST" is unambiguous; "3 PM" across a +2h gap is not.
- Block 9:00 AM–3:00 PM MST as the recurring meeting window if you work primarily from MST and need CDT 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 CDT (Central Daylight Time)
Central Daylight Time (CDT) is observed during summer months in the US and Canadian portions of the Central Time Zone. Clocks are moved forward by one hour, aligning with Eastern Standard Time (EST). Most of Mexico and Central America do not observe CDT, staying on CST year-round.
Best time to call between MST and CDT
Both MST and CDT sit inside the 9 AM – 5 PM working day between 9:00 AM–3:00 PM MST, which is 11:00 AM–5:00 PM CDT. That gives roughly 6 hours of shared time — the safest window for a live call or meeting.
Business hours overlap
MST and CDT share 6 hours of working-hours overlap (9:00 AM–3:00 PM MST), so scheduling a live meeting is straightforward.
MST is 2 hours ahead of CDT (MST UTC-07:00 → CDT UTC-05:00). The shared working window is 9:00 AM–3:00 PM 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
CDT
☀ Currently in DST
Standard: UTC-06:00 · DST: UTC-05:00
Clocks fall back on Sun, Nov 1, 2026
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 CDT?
MST (MST, UTC-07:00) is 2 hours ahead of CDT (CDT, UTC-05:00). The gap is currently +2h.
How do I convert MST time to CDT time?
Add +2h to MST local time. For example, 9:00 AM in MST is 11:00 AM in CDT.
What time is it in CDT right now?
CDT uses CDT at UTC-05:00. Use the live converter at the top of this page — it updates in real time and already accounts for the +2h offset from MST.
What is the best time to call CDT from MST?
Call between 9:00 AM and 3:00 PM MST — that maps to 11:00 AM–5:00 PM CDT and keeps both parties inside the working day.
Which is ahead, MST or CDT?
MST is 2 hours ahead of CDT. When it is 12:00 PM in MST it is 2:00 PM in CDT.
Does daylight saving time affect the MST–CDT difference?
Neither zone observes daylight saving time, so the +2h offset between MST and CDT 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 CDT?
Not normally. The +2h gap only pushes the date over for late-evening times.
What is the time difference between MST and CDT?
CDT is +2h from MST.
What timezone is MST in?
MST operates on its local timezone.
What timezone is CDT in?
CDT 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 CDT timezone?
Major cities in the CDT timezone include Chicago, Houston, Dallas, Austin, Winnipeg, Nashville.
What is the UTC offset for CDT?
Central Daylight Time (CDT) is at UTC-05:00. During daylight saving time, it shifts to CST.
What should I know about the CDT timezone?
CDT is the same offset as EST (UTC-05:00), which can cause confusion. CDT runs from the second Sunday in March to the first Sunday in November.
When is it midnight in MST, what time is it in CDT?
When it is 12:00 AM (midnight) in MST (MST), it is +2h later in CDT (CDT).
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See every conversion from MST →·See every conversion from CDT →