The park is open year round except Christmas, December 25.
Petrified Forest National Park is open at different hours during the year. Hour Changes (times are Mountain Standard year round-this area does not observe Daylight Saving):
Park Road Hours
Starting Sunday, October 28, the park is open 8am-5pm, including the visitor centers.
Visitor Centers Hours
Painted Desert Visitor Center and Rainbow Forest Museum & Visitor Center are open 8am-5pm.
Painted Desert Inn National Historic Landmark Hours
Note: Arizona does not observe Daylight Saving Time, remaining on Mountain Standard Time year-round. For example, in the summer months, during Daylight Saving Time, the time in Arizona and California is the same, with New Mexico and the Navajo Reservation one hour ahead.