Phoenix will keep the same clock time on Sunday, November 1. Los Angeles and Denver will move back an hour. The relative time changes for calls, appointments and journeys between those cities, even though Phoenix's clock never moves.

NIST gives November 1 at 2 a.m. local time as the end of daylight saving time in 2026. Most of Arizona does not observe the change. Phoenix remains on Mountain Standard Time, or MST, throughout the year.

Put a city beside the meeting time

Before the change, Phoenix and Los Angeles show the same time. After Los Angeles returns to Pacific Standard Time, Phoenix is one hour ahead. Denver is one hour ahead of Phoenix before the change, then matches it afterward.

Here is a meeting fixed at 1 p.m. in Phoenix, using an ordinary workday on each side of the change:

Meeting datePhoenixLos AngelesDenverNavajo Nation
Friday, October 301 p.m. MST1 p.m. PDT2 p.m. MDT2 p.m. MDT
Monday, November 21 p.m. MSTNoon PST1 p.m. MST1 p.m. MST

These are conversions from the offsets in NIST's time-zone table. The meeting stays fixed in Phoenix. A meeting fixed at a Los Angeles or Denver time produces a different change for the Arizona participant.

For example, a recurring 9 a.m. Los Angeles call is also 9 a.m. in Phoenix on October 30. On November 2, that same Los Angeles appointment is 10 a.m. in Phoenix. Check which participant's local time the group intends to preserve before changing an invitation.

The Navajo Nation observes daylight saving time

An Arizona address alone is not enough to settle the question. The Navajo Nation's own 2026 notice confirms that it observes daylight saving time to remain aligned with communities and services in Utah and New Mexico. Its clocks therefore change when Phoenix's do not.

For a tour, medical appointment or pickup on the Navajo Nation, ask the operator for the local time at the specific meeting point. Put that location in the invitation. A phone showing Phoenix time is a poor substitute for confirming the time used by the person expecting you.

Hopi villages keep standard time

The Experience Hopi visitor center's time-zone guidance adds an exception within northeastern Arizona: Hopi villages keep Arizona time even while the surrounding Navajo Nation observes daylight saving time. Its example places Navajo Tuba City across the roadway from the Legacy Inn in Upper Moenkopi on Hopi land. Nearby destinations can therefore use different clocks during the daylight-saving months.

For a 1 p.m. appointment in a Hopi village on October 30, the Navajo Nation clock reads 2 p.m. On November 2, both read 1 p.m. The autumn change removes that difference; a spring visit would need a fresh check.

A hotel confirmation and a tour pickup can belong to different local-time arrangements even within one short journey. Confirm each stop's location and stated time rather than assigning every booking in the region to one reservation's clock.

Check the calendar in three passes

  1. This week: Open each recurring appointment that involves another time zone. Identify whether it is meant to stay at a Phoenix, Los Angeles, Denver or other local hour.
  2. Before Sunday: Check the November 2 occurrence, rather than judging the whole series from October's entry. Ask the organizer to correct it if the intended local time is wrong.
  3. On Monday: Compare the invitation with the participant's city before joining the first call after the change. Update a written office schedule as well as the calendar if people use both.

For an overnight journey on November 1, give the full date, place and time-zone abbreviation when confirming a connection. In places changing clocks, the hour from 1 a.m. to 2 a.m. occurs twice. A daylight or standard designation can distinguish two appointments that would otherwise look identical.

If an invitation uses a fixed offset instead of a named location, ask the organizer to verify future occurrences. Avoid moving every meeting by an hour: some already follow the intended city's local clock.