CDT to MST
-2hCDT
CDTSOURCEMST
MSTGreen rows indicate typical business hours (9 AM - 5 PM)
CDT and MST on the World Map
The map below highlights the CDT (Central Daylight Time) and MST (Mountain Standard Time) timezone regions across the globe.
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.
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 to MST Time Difference – Complete Guide
CDT runs on Central Daylight Time (CDT) at UTC-05:00. MST runs on Mountain Standard Time (MST) at UTC-07:00. That puts CDT 2 hours behind MST — a difference of -2h at the current offsets.
In practice, when it is 9:00 AM in CDT it is 7:00 AM in MST. Midnight in CDT is 10:00 PM in MST. Neither zone observes daylight saving time, so the offset between them stays constant all year.
CDT to MST time conversion table
| CDT (CDT) | MST (MST) | Day |
|---|---|---|
| 12:00 AM | 10:00 PM | previous day |
| 6:00 AM | 4:00 AM | same day |
| 7:00 AM | 5:00 AM | same day |
| 8:00 AM | 6:00 AM | same day |
| 9:00 AM | 7:00 AM | same day |
| 12:00 PM | 10:00 AM | same day |
| 3:00 PM | 1:00 PM | same day |
| 5:00 PM | 3:00 PM | same day |
| 6:00 PM | 4:00 PM | same day |
| 9:00 PM | 7:00 PM | same day |
Why people convert CDT to MST time
- Scheduling a call from CDT to MST: a 10:00 AM start in CDT lands at 8:00 AM in MST, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both CDT and MST are inside the 9-to-5 working day between 11:00 AM and 5:00 PM CDT time (9:00 AM–3:00 PM MST). That is roughly 6 hours of usable overlap.
- Watching a live event or market open: CDT viewers need 7:00 AM in MST to catch a 9:00 AM start there, and 2:00 AM if the event is anchored to CDT.
- Always state the zone abbreviation, not just the hour. "3:00 PM CDT" is unambiguous; "3 PM" across a -2h gap is not.
- Block 11:00 AM–5:00 PM CDT as the recurring meeting window if you work primarily from CDT and need MST colleagues present.
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.
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).
Best time to call between CDT and MST
Both CDT and MST sit inside the 9 AM – 5 PM working day between 11:00 AM–5:00 PM CDT, which is 9:00 AM–3:00 PM MST. That gives roughly 6 hours of shared time — the safest window for a live call or meeting.
Business hours overlap
CDT and MST share 6 hours of working-hours overlap (11:00 AM–5:00 PM CDT), so scheduling a live meeting is straightforward.
CDT is 2 hours behind MST (CDT UTC-05:00 → MST UTC-07:00). The shared working window is 11:00 AM–5:00 PM CDT. Remember to re-check around daylight-saving transitions.
🕐 Daylight Saving Time Info
CDT
☀ Currently in DST
Standard: UTC-06:00 · DST: UTC-05:00
Clocks fall back on Sun, Nov 1, 2026
MST
☀ Currently in DST
Standard: UTC-07:00 · DST: UTC-06:00
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 CDT and MST?
CDT (CDT, UTC-05:00) is 2 hours behind MST (MST, UTC-07:00). The gap is currently -2h.
How do I convert CDT time to MST time?
Add -2h to CDT local time. For example, 9:00 AM in CDT is 7:00 AM in MST.
What time is it in MST right now?
MST uses MST at UTC-07:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -2h offset from CDT.
What is the best time to call MST from CDT?
Call between 11:00 AM and 5:00 PM CDT — that maps to 9:00 AM–3:00 PM MST and keeps both parties inside the working day.
Which is behind, CDT or MST?
CDT is 2 hours behind MST. When it is 12:00 PM in CDT it is 10:00 AM in MST.
Does daylight saving time affect the CDT–MST difference?
Neither zone observes daylight saving time, so the -2h offset between CDT and MST is fixed all year.
Which other cities share CDT's time zone?
CDT also covers Chicago, Houston, Dallas, Austin, Winnipeg, Nashville.
Which countries use CDT, CDT's zone?
CDT is used in United States (Central), Canada (Manitoba).
Is there a day difference between CDT and MST?
Not normally. The -2h gap only pushes the date over the previous day.
What is the time difference between CDT and MST?
MST is -2h from CDT.
What timezone is CDT in?
CDT operates on its local timezone.
What timezone is MST in?
MST operates on its local timezone.
Which countries use CDT (Central Daylight Time)?
CDT is used in United States (Central), Canada (Manitoba).
Does CDT observe daylight saving time?
Yes, CDT switches to CST during summer months.
What are some interesting facts about CDT?
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.
Which cities are in the MST timezone?
Major cities in the MST timezone include Denver, Phoenix, Salt Lake City, Calgary, Edmonton, Albuquerque, El Paso, Tucson.
What is the UTC offset for MST?
Mountain Standard Time (MST) is at UTC-07:00. During daylight saving time, it shifts to MDT.
What should I know about the MST timezone?
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.
When is it midnight in CDT, what time is it in MST?
When it is 12:00 AM (midnight) in CDT (CDT), it is -2h later in MST (MST).
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See every conversion from CDT →·See every conversion from MST →