Most of Arizona observes Mountain Standard Time (MST) all year. However, because the Navajo Nation observes Daylight Saving Time (DST), the corresponding DST designation, Mountain Daylight Time (MDT) is also listed here. UTC -7 is the time zone offset for Pacific Time (PCT), Pacific Daylight Time (PDT) and Mountain Standard Time (MST). The IANA time zone identifier for Arizona is America/Phoenix. All counties and cities of the state have the same time zone. Arizona does not observe daylight savings with the exception of the Navajo Nation Reservation in the north east, also referred to as “daylight savings donut”. Historic, present and future dates for daylight saving time and clock changes. Time changes between years 2020 and 2029 in USA – Arizona – Phoenix are shown here. Explore Arizona's interactive time zone map, including year-round MST, Navajo Nation daylight saving, Hopi lands, all 15 counties and UTC offsets. Most of Arizona is in the Mountain Time Zone and observes Mountain Time. [2] Since 1968, most of the state—except the Navajo Nation —does not observe daylight saving time and remains on Mountain Standard Time (MST) all year. Check time in Arizona right now, UTC offset and daylight saving time dates. When does clock change in 2026? This page explains Arizona time zones, UTC offsets, abbreviations and DST exceptions. If your main question is what time it is in Arizona right now, open the statewide current-time page or a city clock below. Arizona uses Mountain Standard Time (UTC-7). The state does not observe daylight saving time and stays on standard time year-round. In this article, I’ll break down what time zone Arizona is in and make sure that when you visit you’re not just a tourist, but a true Arizonan time wizard! So grab some cactus juice and let’s get started!.