AEDT to Denver
-17hAEDT
AEDTSOURCEDenver
MDTGreen rows indicate typical business hours (9 AM - 5 PM)
AEDT and MDT on the World Map
The map below highlights the AEDT (Australian Eastern Daylight Time) and MDT (Mountain Standard Time) timezone regions across the globe.
AEDT – Australian Eastern Daylight Time
UTC+11:00Australian Eastern Daylight Time (AEDT, UTC+11:00) is the daylight saving period in south-eastern Australia, from October to April.
- •AEDT runs from the first Sunday in October to the first Sunday in April.
- •AEDT is one hour ahead of Australian Eastern Standard Time (AEST).
- •Queensland does not observe daylight saving, so Brisbane stays on AEST.
- •During AEDT, Sydney is 16 hours ahead of New York and 11 hours ahead of UTC.
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.
Understanding the -17h Gap: AEDT vs Denver
AEDT runs on Australian Eastern Daylight Time (AEDT) at UTC+11:00. Denver runs on Mountain Daylight Time (MDT) at UTC-06:00, also currently on daylight saving time. That puts AEDT 17 hours behind Denver — a difference of -17h at the current offsets.
In practice, when it is 9:00 AM in AEDT it is 4:00 PM in Denver on the previous day. Midnight in AEDT is 7:00 AM in Denver.Denver observes daylight saving time while AEDT does not, so the gap narrows or widens by an hour part of the year.
AEDT to Denver time conversion table
| AEDT (AEDT) | Denver (MDT) | Day |
|---|---|---|
| 12:00 AM | 7:00 AM | previous day |
| 6:00 AM | 1:00 PM | previous day |
| 7:00 AM | 2:00 PM | previous day |
| 8:00 AM | 3:00 PM | previous day |
| 9:00 AM | 4:00 PM | previous day |
| 12:00 PM | 7:00 PM | previous day |
| 3:00 PM | 10:00 PM | previous day |
| 5:00 PM | 12:00 AM | same day |
| 6:00 PM | 1:00 AM | same day |
| 9:00 PM | 4:00 AM | same day |
Why people convert AEDT to Denver time
- Scheduling a call from AEDT to Denver: a 10:00 AM start in AEDT lands at 5:00 PM in Denver the previous day, so you can confirm the slot without doing the arithmetic yourself.
- Handling a -17h gap: AEDT and Denver 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 Denver is 4:00 PM in AEDT.
- Booking travel or deliveries: tracking Denver local time against AEDT keeps pickup windows and arrival estimates honest across the -17h offset.
- Always state the zone abbreviation, not just the hour. "3:00 PM AEDT" is unambiguous; "3 PM" across a -17h gap is not.
- With a -17h gap there is no shared 9-to-5 window, so alternate the early start: one week AEDT takes the early slot, the next week Denver does.
- Denver: Clocks fall back on Sun, Nov 1, 2026. Any meeting series spanning that date will shift by an hour in local time.
About AEDT (Australian Eastern Daylight Time)
Australian Eastern Daylight Time (AEDT) is the daylight saving period in south-eastern Australia, one hour ahead of Australian Eastern Standard Time (AEST, UTC+10:00). Because Australia is in the southern hemisphere, AEDT runs through the summer — from the first Sunday in October to the first Sunday in April — which is almost exactly the reverse of the European and North American schedules. New South Wales, Victoria, Tasmania and the Australian Capital Territory observe it; Queensland and the Northern Territory do not, so Brisbane stays on AEST year round while Sydney moves to AEDT. During AEDT, Sydney is 11 hours ahead of UTC and 16 hours ahead of New York.
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 AEDT and Denver
With a -17h offset there is no overlap inside a normal 9 AM – 5 PM day. Denver opens at 9:00 AM MDT, which is 4:00 PM in AEDT, so real-time calls need an early-morning or late-evening slot on one side.
Business hours overlap
AEDT and Denver have no shared working hours because of the -17h gap. Teams need to alternate early starts or rely on asynchronous handovers.
AEDT is 17 hours behind Denver (AEDT UTC+11:00 → MDT UTC-06:00). 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
AEDT
❄ Currently in Standard Time
Standard: UTC+10:00 · DST: UTC+11:00
Clocks spring forward on Sat, Oct 3, 2026
Denver
☀ Currently in DST
Standard: UTC-07:00 · DST: UTC-06:00
Clocks fall back on Sun, Nov 1, 2026
⚠ These locations are currently in different DST states, so the time difference may change when clocks adjust.
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 AEDT and Denver?
AEDT (AEDT, UTC+11:00) is 17 hours behind Denver (MDT, UTC-06:00). The gap is currently -17h.
How do I convert AEDT time to Denver time?
Add -17h to AEDT local time. For example, 9:00 AM in AEDT is 4:00 PM in Denver (previous day).
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 -17h offset from AEDT.
What is the best time to call Denver from AEDT?
There is no shared working-hours window because of the -17h gap. The closest option is 1:00 PM in AEDT, which is 8:00 PM in Denver.
Which is behind, AEDT or Denver?
AEDT is 17 hours behind Denver. When it is 12:00 PM in AEDT it is 7:00 PM in Denver.
Do AEDT and Denver use different time zones?
AEDT uses AEDT at UTC+11:00, while Denver (USA) uses MDT at UTC-06:00. The IANA identifiers are Australia/Sydney and America/Denver.
Does daylight saving time affect the AEDT–Denver difference?
Yes at the moment: Denver is on daylight saving time and AEDT is not, so the -17h gap shifts by an hour when exactly one of them changes clocks.
Which other cities share AEDT's time zone?
AEDT also covers Sydney, Melbourne, Canberra, Hobart, Newcastle.
Which countries use AEDT, AEDT's zone?
AEDT is used in Australia (NSW, Victoria, Tasmania, ACT).
Is there a day difference between AEDT and Denver?
Sometimes. The -17h gap is large enough that 8:00 PM or later in AEDT already falls on the in Denver.
What is the time difference between AEDT and Denver?
Denver is -17h from AEDT.
What timezone is AEDT in?
AEDT 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 AEDT (Australian Eastern Daylight Time)?
AEDT is used in Australia (NSW, Victoria, Tasmania, ACT).
Does AEDT observe daylight saving time?
Yes, AEDT switches to AEDT during summer months.
What are some interesting facts about AEDT?
AEDT runs from the first Sunday in October to the first Sunday in April. AEDT is one hour ahead of Australian Eastern Standard Time (AEST).
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 AEDT, what time is it in Denver?
When it is 12:00 AM (midnight) in AEDT (AEDT), it is -17h later in Denver (MST).
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