Phoenix, Arizona is located in the Mountain Time Zone. Since 1968, the majority of the state, with a few exceptions, has not observed Daylight Saving Time and remains in Mountain Standard Time (MST) year-round. This means that most of Arizona has the same time as neighboring California from March to November, when locations in the Pacific Time Zone observe Daylight Saving Time. In 1968, the Arizona legislature passed SB 1, which placed Arizona under standard time.
This means that most of Arizona is on Mountain Standard Time (MST) all year round. The exceptions to this are the Navajo Nation, which observes Daylight Saving Time, and the Hopi Nation, which does not observe Daylight Saving Time. The Navajo Nation is located in northeastern Arizona and extends into New Mexico and Utah. The Hopi Nation is located in northeastern Arizona and is surrounded by the Navajo Nation. Both of these areas observe different time zones than the rest of Arizona. The time zone for Phoenix, Arizona is Mountain Standard Time (MST).
This means that during Daylight Saving Time (DST), Phoenix is on Mountain Daylight Time (MDT). During DST, Phoenix is one hour ahead of MST. It's important to note that not all areas of Arizona observe Daylight Saving Time. The Navajo Nation and Hopi Nation do not observe DST, so they remain on MST all year round. It's also important to note that some areas of Arizona may observe different time zones than Phoenix.
For example, some areas of western Arizona may observe Pacific Standard Time (PST) instead of MST.
