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ART to Denver

-3h

ART

ARTSOURCE
UTC-03:00
HH12
:
MM00
  
12:00 (24-hr)
12 AM6 AM12 PM6 PM12 AM

Denver

MDT
USA · UTC-06:00☀ DST active
HH09
:
MM00
  
09:00 (24-hr)
12 AM6 AM12 PM6 PM12 AM
ART
Denver
12:00 AM
9:00 PM-1
2:00 AM
11:00 PM-1
4:00 AM
1:00 AM
6:00 AM
3:00 AM
8:00 AM
5:00 AM
10:00 AM
7:00 AM
12:00 PM
9:00 AM
2:00 PM
11:00 AM
4:00 PM
1:00 PM
6:00 PM
3:00 PM
8:00 PM
5:00 PM
10:00 PM
7:00 PM

Green rows indicate typical business hours (9 AM - 5 PM)

ART and MDT on the World Map

The map below highlights the ART (Argentina Time) and MDT (Mountain Standard Time) timezone regions across the globe.

ARTMDTBuenos AiresCórdobaRosarioMendozaDenverPhoenixSalt Lake CityCalgary
ART Zone
→
MDT Zone

Explore all world timezones interactively →

ART – Argentina Time

UTC-03:00

Argentina Time (ART) is the standard time for Argentina, 3 hours behind UTC.

Countries in ART
Argentina
Major Cities in ART
Buenos AiresCórdobaRosarioMendozaLa PlataTucumán
Key Facts about ART
  • •Argentina does not observe daylight saving time.
  • •Buenos Aires is one of the most visited cities in South America.
  • •ART is the same offset as BRT (UTC-03:00).
Daylight Saving:No – UTC-03:00 year-round
Learn more about ART on Wikipedia

MST – Mountain Standard Time

UTC-07:00

Mountain Standard Time (MST) is the time zone for the Mountain region of North America, 7 hours behind UTC.

Countries in MST
United States (Mountain)Canada (Alberta)Mexico (Chihuahua, Sonora)
Major Cities in MST
DenverPhoenixSalt Lake CityCalgaryEdmontonAlbuquerqueEl PasoTucsonBoiseCiudad Juárez
Key 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.
  • •Denver, the 'Mile High City', is the largest city fully in MST.
  • •MST covers 6 US states entirely and parts of several others.
Daylight Saving:Yes – switches to MDT
Learn more about MST on Wikipedia

About Denver

Wikipedia

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.

Population:715,000
Metro:2.9 million
Business Hours:8:00 AM - 5:00 PM MST
Currency:USD ($)
Key Landmarks
Red Rocks AmphitheatreDenver Art MuseumUnion Station16th Street MallColorado State Capitol
Did You Know?

Denver International Airport is the largest airport in North America by land area.

Learn more about MDT timezone →

ART to Denver Time Difference – Complete Guide

ART runs on Argentina Time (ART) at UTC-03:00. Denver runs on Mountain Daylight Time (MDT) at UTC-06:00, also currently on daylight saving time. That puts ART 3 hours behind Denver — a difference of -3h at the current offsets.

In practice, when it is 9:00 AM in ART it is 6:00 AM in Denver. Midnight in ART is 9:00 PM in Denver.Denver observes daylight saving time while ART does not, so the gap narrows or widens by an hour part of the year.

ART to Denver time conversion table

ART (ART)Denver (MDT)Day
12:00 AM9:00 PMprevious day
6:00 AM3:00 AMsame day
7:00 AM4:00 AMsame day
8:00 AM5:00 AMsame day
9:00 AM6:00 AMsame day
12:00 PM9:00 AMsame day
3:00 PM12:00 PMsame day
5:00 PM2:00 PMsame day
6:00 PM3:00 PMsame day
9:00 PM6:00 PMsame day

Why people convert ART to Denver time

  • Scheduling a call from ART to Denver: a 10:00 AM start in ART lands at 7:00 AM in Denver, so you can confirm the slot without doing the arithmetic yourself.
  • Finding shared working hours: both ART and Denver are inside the 9-to-5 working day between 12:00 PM and 5:00 PM ART time (9:00 AM–2:00 PM MDT). That is roughly 5 hours of usable overlap.
  • Coordinating a ART-based team with Denver 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 ART" is unambiguous; "3 PM" across a -3h gap is not.
  • Block 12:00 PM–5:00 PM ART as the recurring meeting window if you work primarily from ART 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 ART (Argentina Time)

Argentina Time (ART) is the time zone used throughout Argentina. Argentina does not observe daylight saving time. ART shares the same offset as Brasilia Time (BRT) and Uruguay's UYT.

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 ART and Denver

Both ART and Denver sit inside the 9 AM – 5 PM working day between 12:00 PM–5:00 PM ART, which is 9:00 AM–2:00 PM MDT. That gives roughly 5 hours of shared time — the safest window for a live call or meeting.

Business hours overlap

ART and Denver share 5 hours of working-hours overlap (12:00 PM–5:00 PM ART), so scheduling a live meeting is straightforward.

ART is 3 hours behind Denver (ART UTC-03:00 → MDT UTC-06:00). The shared working window is 12:00 PM–5:00 PM ART. Remember to re-check around daylight-saving transitions.

🕐 Daylight Saving Time Info

ART

Does not observe DST

Denver

☀ Currently in DST

Standard: UTC-07:00 · DST: UTC-06:00

Clocks fall back on Sun, Nov 1, 2026

Frequently Asked Questions

What is the time difference between ART and Denver?

ART (ART, UTC-03:00) is 3 hours behind Denver (MDT, UTC-06:00). The gap is currently -3h.

How do I convert ART time to Denver time?

Add -3h to ART local time. For example, 9:00 AM in ART is 6:00 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 -3h offset from ART.

What is the best time to call Denver from ART?

Call between 12:00 PM and 5:00 PM ART — that maps to 9:00 AM–2:00 PM MDT and keeps both parties inside the working day.

Which is behind, ART or Denver?

ART is 3 hours behind Denver. When it is 12:00 PM in ART it is 9:00 AM in Denver.

Do ART and Denver use different time zones?

ART uses ART at UTC-03:00, while Denver (USA) uses MDT at UTC-06:00. The IANA identifiers are America/Buenos_Aires and America/Denver.

Does daylight saving time affect the ART–Denver difference?

Yes at the moment: Denver is on daylight saving time and ART is not, so the -3h gap shifts by an hour when exactly one of them changes clocks.

Which other cities share ART's time zone?

ART also covers Buenos Aires, Córdoba, Rosario, Mendoza, La Plata, Tucumán.

Which countries use ART, ART's zone?

ART is used in Argentina.

Is there a day difference between ART and Denver?

Not normally. The -3h gap only pushes the date over the previous day.

What is the time difference between ART and Denver?

Denver is -3h from ART.

What timezone is ART in?

ART 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 ART (Argentina Time)?

ART is used in Argentina.

Does ART observe daylight saving time?

No, ART does not observe daylight saving time and remains at UTC-03:00 year-round.

What are some interesting facts about ART?

Argentina does not observe daylight saving time. Buenos Aires is one of the most visited cities in South America.

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 ART, what time is it in Denver?

When it is 12:00 AM (midnight) in ART (ART), it is -3h later in Denver (MST).