CDT to Denver
-1hCDT
CDTSOURCEDenver
MDTGreen rows indicate typical business hours (9 AM - 5 PM)
CDT and MDT on the World Map
The map below highlights the CDT (Central Daylight Time) and MDT (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.
About Denver
WikipediaDenver operates on Mountain Time (MST/MDT), 2 hours behind New York. As a tech and aerospace hub, Denver bridges West Coast and Central US business hours.
Denver International Airport is the largest airport in North America by land area.
Everything You Need to Know About CDT and Denver Time
CDT runs on Central Daylight Time (CDT) at UTC-05:00. Denver runs on Mountain Daylight Time (MDT) at UTC-06:00, also currently on daylight saving time. That puts CDT 1 hour behind Denver — a difference of -1h at the current offsets.
In practice, when it is 9:00 AM in CDT it is 8:00 AM in Denver. Midnight in CDT is 11:00 PM in Denver.Denver observes daylight saving time while CDT does not, so the gap narrows or widens by an hour part of the year.
CDT to Denver time conversion table
| CDT (CDT) | Denver (MDT) | Day |
|---|---|---|
| 12:00 AM | 11:00 PM | previous day |
| 6:00 AM | 5:00 AM | same day |
| 7:00 AM | 6:00 AM | same day |
| 8:00 AM | 7:00 AM | same day |
| 9:00 AM | 8:00 AM | same day |
| 12:00 PM | 11:00 AM | same day |
| 3:00 PM | 2:00 PM | same day |
| 5:00 PM | 4:00 PM | same day |
| 6:00 PM | 5:00 PM | same day |
| 9:00 PM | 8:00 PM | same day |
Why people convert CDT to Denver time
- Scheduling a call from CDT to Denver: a 10:00 AM start in CDT lands at 9:00 AM in Denver, so you can confirm the slot without doing the arithmetic yourself.
- Finding shared working hours: both CDT and Denver are inside the 9-to-5 working day between 10:00 AM and 5:00 PM CDT time (9:00 AM–4:00 PM MDT). That is roughly 7 hours of usable overlap.
- Keeping family and friends in sync: knowing that 8:00 PM in CDT is 7:00 PM in Denver makes it easy to avoid calling at 3 AM.
- Always state the zone abbreviation, not just the hour. "3:00 PM CDT" is unambiguous; "3 PM" across a -1h gap is not.
- Block 10:00 AM–5:00 PM CDT as the recurring meeting window if you work primarily from CDT and need Denver colleagues present.
- Denver: Clocks fall back on Sun, Nov 1, 2026. Any meeting series spanning that date will shift by an hour in local time.
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 Denver
Both CDT and Denver sit inside the 9 AM – 5 PM working day between 10:00 AM–5:00 PM CDT, which is 9:00 AM–4:00 PM MDT. That gives roughly 7 hours of shared time — the safest window for a live call or meeting.
Business hours overlap
CDT and Denver share 7 hours of working-hours overlap (10:00 AM–5:00 PM CDT), so scheduling a live meeting is straightforward.
CDT is 1 hour behind Denver (CDT UTC-05:00 → MDT UTC-06:00). The shared working window is 10:00 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
Denver
☀ 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 Denver?
CDT (CDT, UTC-05:00) is 1 hour behind Denver (MDT, UTC-06:00). The gap is currently -1h.
How do I convert CDT time to Denver time?
Add -1h to CDT local time. For example, 9:00 AM in CDT is 8:00 AM in Denver.
What time is it in Denver right now?
Denver uses MDT at UTC-06:00. Use the live converter at the top of this page — it updates in real time and already accounts for the -1h offset from CDT.
What is the best time to call Denver from CDT?
Call between 10:00 AM and 5:00 PM CDT — that maps to 9:00 AM–4:00 PM MDT and keeps both parties inside the working day.
Which is behind, CDT or Denver?
CDT is 1 hour behind Denver. When it is 12:00 PM in CDT it is 11:00 AM in Denver.
Do CDT and Denver use different time zones?
CDT uses CDT at UTC-05:00, while Denver (USA) uses MDT at UTC-06:00. The IANA identifiers are America/Chicago and America/Denver.
Does daylight saving time affect the CDT–Denver difference?
Yes at the moment: Denver is on daylight saving time and CDT is not, so the -1h gap shifts by an hour when exactly one of them changes clocks.
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 Denver?
Not normally. The -1h gap only pushes the date over the previous day.
What is the time difference between CDT and Denver?
Denver is -1h from CDT.
What timezone is CDT in?
CDT operates on its local timezone.
What timezone is Denver in?
Denver operates on Mountain Time (MST/MDT), 2 hours behind New York. As a tech and aerospace hub, Denver bridges West Coast and Central US business hours.
What are the business hours in Denver?
Standard business hours in Denver are 8:00 AM - 5:00 PM MST.
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 Denver?
When it is 12:00 AM (midnight) in CDT (CDT), it is -1h later in Denver (MST).
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