{{Short description|Time zones in North America}} {{see also|List of counties in Idaho}} [[File:UTC hue4map USA-ID.svg|right|thumb| {{Legend|#0000FF|Pacific Time Zone}}{{Legend|#FF00FF|Mountain Time Zone}}{{Legend|#7F00FF|Split between both time zones}}]] The U.S. state of Idaho is covered by two time zones, as described below. All locations observe daylight saving time.
The Pacific Time Zone (UTC−08:00, DST UTC−07:00) covers an area roughly coterminous with the Idaho Panhandle or North Idaho: *Benewah *Bonner *Boundary *Clearwater *Kootenai (includes Coeur d'Alene) *Latah (includes Moscow) *Lewis *Nez Perce (includes Lewiston) *Shoshone *Portion of Idaho County north of the Salmon River *The towns of Burgdorf and Warren{{fact|date=February 2022}}
An easy way to distinguish the line is that it essentially follows the line that divides Washington and Oregon. Idaho counties east of Washington observe Pacific Time, and Idaho counties east of Oregon observe Mountain Time.
The Mountain Time Zone (UTC−07:00, DST UTC−06:00) covers the rest of the state.
==History== The 1918 Standard Time Act put most of Idaho into the Pacific Time Zone – only the very eastern parts were in the Mountain Time Zone.<ref>{{cite book | title= Seize the Daylight: The Curious and Contentious Story of Daylight Saving Time | first= David | last= Prerau | page= 91 | year= 2006 | isbn= 978-1-56025-796-7 | url= https://books.google.com/books?id=Xf_D6DpKlD0C&pg=PA91 }}</ref><!-- And how/when did it change? -->
For three decades or so in the middle of the twentieth century, Shoshone County had its own time arrangements; it was said to be "on permanent daylight time",<ref>{{cite news |url=https://news.google.com/newspapers?nid=1338&dat=19661104&id=GrszAAAAIBAJ&sjid=1fcDAAAAIBAJ&pg=5460,1388233 |newspaper=Spokane Daily Chronicle |date=1966-11-04 |accessdate=2016-05-31 |title=Time Zone Woe May Be Solved}}</ref> so that in the winter the county had the same clock time as Montana and southern Idaho, but in the summer it had the same clock time as Washington and northern Idaho.
==tz database== The tz database version {{Time zone/version}} contains two time zones for Idaho: {| class="wikitable sortable" ! width="3%" | CC ! width="12%" | Coordinates ! width="20%" | TZ ! width="23%" | Comments ! width="6%" | UTC offset ! width="6%" | UTC offset DST ! width="30%" | Notes |- | {{Time zone/zone.tab cols linked|America/Los_Angeles}} | |- | {{Time zone/zone.tab cols linked|America/Boise}} | |}
==References== {{reflist}}
==External links== * [http://www.howderfamily.com/blog/usa-time-zone-anomalies-part-i/ Time Zone Anomalies]
{{Time in the United States}}
Idaho Category:Geography of Idaho