<Li> Revillagigedo Islands (Colima): three of the four islands have the same time as Mountain Time Zone, Isla Socorro, San Benedicto Island and Roca Partida . </Li> <P> Five states are fully contained in the Mountain Time Zone: </P> <Ul> <Li> Arizona--no DST, except in the Navajo Nation </Li> <Li> Colorado </Li> <Li> Montana </Li> <Li> Utah </Li> <Li> Wyoming </Li> </Ul> <Li> Arizona--no DST, except in the Navajo Nation </Li>

What states are in mountain standard time zone