What time is it in Arizona right now? Most of the state operates on Mountain Standard Time year-round, staying permanently fixed at UTC-7. Because the state chooses not to shift clocks forward or backward, the local time changes relative to the rest of the United States depending on the time of year.
If you are planning a trip, scheduling a call, or trying to figure out your watch settings, understanding how Arizona handles time zones prevents confusion. While the rule sounds simple, a few major exceptions inside the state borders create unique scheduling quirks that catch travelers off guard.
Understanding Arizona Time Zones
Almost all of Arizona sits in the Mountain Standard Time (MST) zone. Unlike most other states, Arizona does not observe Daylight Saving Time (DST).
When the rest of the country springs forward in March, Arizona stays right where it is. This means that during the spring and summer months, Arizona shares the exact same clock time as Pacific Daylight Time (PDT) states like California and Nevada. During the autumn and winter months—after the rest of the country falls back—Arizona aligns with Mountain Standard Time states like Colorado and New mucus-free Utah.
You never have to worry about changing your clocks if you are visiting Phoenix, Tucson, Sedona, or the Grand Canyon. Your phone and computer will handle the math automatically, but old mechanical clocks or car dashboards left on manual settings will need attention if you cross state lines.
Why Arizona Does Not Observe Daylight Saving Time
Arizona dropped out of the seasonal time change routine back in 1968, following a brief trial run in 1967. State leaders and residents realized that extending daylight hours into the evening did not make sense for a desert climate.
In cooler parts of the country, extra evening sunlight helps reduce energy consumption by delaying the need for indoor lighting. In Arizona, the opposite happens. Summer temperatures routinely soar past 100 degrees Fahrenheit well into the evening hours. An extra hour of blistering afternoon sun forces homes and businesses to run air conditioning units harder for longer periods, driving up utility bills.
Furthermore, residents wanted cooler mornings for outdoor activities rather than scorching late-afternoon sun beating down on children waiting for school buses or playing outside. Citing energy conservation and practical comfort, the state legislature opted out permanently under provisions allowed by federal law. You can read more about federal time guidelines through the U.S. Department of Transportation.
The Navajo Nation Exception
The no-DST rule applies to the vast majority of Arizona, but it has one major geographic exception. The Navajo Nation, which covers a massive section of northeastern Arizona (as well as parts of New Mexico and Utah), does observe Daylight Saving Time.
If you travel to Navajo territory—including popular destinations like Window Rock, Chinle, or parts of Monument Valley—your clocks will match the spring-forward and fall-back schedule used by the rest of the country.
This creates a strange phenomenon during the summer months. You can drive across a invisible border on a highway and suddenly find your phone updating its time by an entire hour.
The Hopi Reservation Quirk
To make things even more complex, the Hopi Reservation is completely surrounded by the Navajo Nation inside northeastern Arizona. Unlike their neighbors, the Hopi tribe chooses not to observe Daylight Saving Time, aligning with the rest of Arizona.
If you take a long road trip through this region during the summer, you might cross tribal boundaries multiple times. Driving a specific route through alternating Navajo and Hopi lands can require changing your watch multiple times in a single afternoon. Keep a close eye on your mobile device's cellular data connection, as local tower handoffs can occasionally lag behind your actual physical location.
How Arizona Time Compares Across the US
Because Arizona shifts its relative alignment twice a year, tracking the time difference between Phoenix and other major hubs requires knowing which season you're in.
During standard time (November to March):
- Arizona is on the same time as Denver (Mountain Standard Time).
- Arizona is one hour ahead of Los Angeles (Pacific Standard Time).
- Arizona is two hours behind New York (Eastern Standard Time).
During daylight saving time (March to November):
- Arizona is one hour behind Denver, which shifts to Mountain Daylight Time.
- Arizona is on the exact same time as Los Angeles, which is on Pacific Daylight Time.
- Arizona is three hours behind New York, which is on Eastern Daylight Time.
If you are scheduling a virtual meeting or a flight, always double-check the exact date of the event to ensure you don't get caught by the one-hour shift. Commercial airlines operating out of Phoenix Sky Harbor International Airport maintain strict schedules using local standard time to avoid passenger confusion. You can verify flight schedules and operational updates directly via Phoenix Sky Harbor.
Common Mistakes to Avoid
Travelers frequently stumble over a few recurring pitfalls regarding Arizona's unique schedule:
- Assuming the whole state is identical: Never assume remote reservations or tribal lands follow Phoenix rules. Always check whether your destination is inside the Navajo Nation.
- Manually changing rental car clocks: Rental cars driven in from neighboring states like California or Utah might have automatic time zone adjusters enabled. If your car insists on shifting its clock forward during the summer, you may need to dive into the dashboard settings to turn off auto-updates.
- Confusing Arizona with Hawaii: While Hawaii is the only other U.S. state that completely rejects Daylight Saving Time, Hawaii operates on Hawaii Standard Time (UTC-10), meaning it sits three hours behind Arizona even during the summer months.
Frequently Asked Questions
Does all of Arizona stay on the same time all year?
Most of the state does, but the Navajo Nation in the northeastern corner follows Daylight Saving Time, meaning they move their clocks forward in March and back in November.
What time zone is Phoenix in during the summer?
During the summer, Phoenix matches Pacific Daylight Time (UTC-7), even though the city technically remains on Mountain Standard Time.
Does Arizona plan to change its time laws?
State lawmakers periodically introduce bills to evaluate joining Daylight Saving Time or staying on it permanently, but no major legislative changes have passed. Arizona remains firmly committed to year-round standard time.
How does Arizona time affect television broadcasts?
Networks often air television shows and sports broadcasts at different local hours depending on the season. During the summer, prime-time shows air concurrently with the West Coast schedule, while winter schedules shift to align closer to mountain region blocks.
