Most of Oregon is in the Pacific Time Zone Malheur County is an
exception Most of Malheur County, Oregon is in the Mountain Time
Zone. This area includes the following communities: Adrian, OR
Arock, OR Brogan, OR Harper, OR Ironside, OR Jamieson, OR Jordan
Valley, OR Juntura, OR Nyssa, OR Ontario, OR Riverside, OR Vale, OR
Westfall, OR Most of Oregon is in the Pacific Time Zone. Malheur
County is an exception. Most of Malheur County, Oregon is in the
Mountain Time Zone. This area includes the following communities:
Adrian, Arock, Brogan, Harper, Ironside, Jamieson, Jordan Valley,
Juntura, Nyssa, Ontario, Riverside, Vale, and Westfall.