When Is Daylight Savings 2025 Arizona. Daylight saving time (dst) is observed in over 70 countries, but this is less than 40%. On saturday night, clocks are set forward 1 hour (i.e., losing one hour) to “spring forward.” sunrise and sunset will be about 1 hour later on march 9,.
Daylight saving starts in 2025 is on sunday, march 9 (second sunday of march). Why does arizona not observe daylight saving time?