part of oregon is in mountain time because of proximity to boise, idaho.
part of oregon is in mountain time because of proximity to boise, idaho.
why is part of oregon in mountain time?
proximity to boise , idaho
time in oregon









































time in oregon is divided into two zones. the vast majority of the state is contained in the pacific time zone. most of sparsely populated malheur county, including its largest city, ontario, and its county seat, vale, are in the mountain time zone due to their proximity to boise, idaho. the time zone division occurs at the southwest corner of township 35s, range 37e (approximately 42.45 degrees north latitude), continuing east to the state line, then south along the oregon-idaho border to the nevada state line.
time in oregon
four states are split between the mountain time zone and the pacific time zone. the following locations observe mountain time:









































bullet::::- arizona – though fully in the mountain time zone, clocks are essentially on the same time as pacific daylight time in the summer. the navajo nation, however, does observe daylight saving time, and its clocks are aligned with mountain daylight time in the summer.









































bullet::::- idaho – southern idaho









































bullet::::- nevada – west wendover is officially on mountain time; mountain city, owyhee, jackpot, and jarbidge observe mountain time unofficially









































bullet::::- oregon – the majority of malheur county
mountain time zone