Time in Oregon

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Most of Oregon lies in the Pacific Time Zone (shown in blue), except for the northern part of Malheur County (shown in purple), which is in the Mountain Time Zone. UTC hue4map US-OR.svg
Most of Oregon lies in the Pacific Time Zone (shown in blue), except for the northern part of Malheur County (shown in purple), which is in the Mountain Time Zone.

Time in Oregon is divided into two zones, with the vast majority 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 35 S, range 37 E (approximately 42.597 degrees north latitude), continuing east to the state line, then south along the Oregon-Idaho border to the Nevada state line. [1]


Drewsey in Harney County is officially in the Pacific Time Zone, but some residents unofficially observe Mountain Time due to proximity to Malheur County.[ citation needed ]

In 2019, the Oregon Senate passed a bill that would put the state (except Malheur County) on year-round Daylight saving time, effectively moving Oregon full time to Mountain Standard Time (UTC −7). The bill has not yet been considered by the Oregon House of Representatives. Similar proposals have been approved in Washington and California; all would need approval of the U.S. Congress.

IANA time zone database

In the IANA time zone database, Oregon is contained in two zones:

c.c.*coordinates*TZ*comments* UTC offset UTC offset DST Note
US +340308−1181434 America/Los_Angeles Pacific −08:00 UTC−07 All except northern 4/5 of Malheur County
US +433649−1161209 America/Boise Mountain - ID (south); OR (east) −07:00 UTC−06 Northern 4/5 of Malheur County only

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<span class="mw-page-title-main">Malheur County, Oregon</span> County in Oregon, United States

Malheur County is one of the 36 counties in the U.S. state of Oregon. As of the 2020 census, the population was 31,571. Its county seat is Vale, and its largest city is Ontario. The county was named after the Malheur River, which runs through the county. The word "malheur" is French for misfortune or tragedy. Malheur County is included in the Ontario, Oregon Micropolitan Statistical Area, which is also included in the Boise Combined Statistical Area. It is included in the eight-county definition of Eastern Oregon.

<span class="mw-page-title-main">Harney County, Oregon</span> County in Oregon, United States

Harney County is one of the 36 counties in the U.S. state of Oregon. As of the 2020 census, the population was 7,495, making it the sixth-least populous county in Oregon. The county seat is Burns. Established in 1889, the county is named in honor of William S. Harney, a military officer of the period, who was involved in the Pig War and popular in the Pacific Northwest.

<span class="mw-page-title-main">Ontario, Oregon</span> City in Oregon, United States

Ontario is the largest city in Malheur County, Oregon, United States. It lies along the Snake River at the Idaho border. The population was 11,366 at the 2010 census. The city is the largest community in the region of far eastern Oregon, also known as the Western Treasure Valley.

<span class="mw-page-title-main">U.S. Route 95</span> Highway in the United States

U.S. Route 95 (US 95) is a major north–south United States Highway in the western United States. It travels through the states of Arizona, California, Nevada, Oregon, and Idaho, staying inland from the Pacific Coast. US 95 begins in San Luis, Arizona, at the Mexican border, where Calle 1—a short spur—leads to Highway 2 in San Luis Río Colorado, Sonora. Its northern terminus is at the Canadian border in Eastport, Idaho, where the roadway continues north as British Columbia Highway 95.

<span class="mw-page-title-main">Eastern Oregon</span> Geographic and cultural region of the U.S. state of Oregon

Eastern Oregon is a region of the U.S. state of Oregon. It is not an officially recognized geographic entity; thus, the boundaries of the region vary according to context. It is sometimes understood to include only the eight easternmost counties in the state; in other contexts, it includes the entire area east of the Cascade Range. Cities in the basic eight-county definition include Baker City, Burns, Hermiston, Pendleton, Boardman, John Day, La Grande, and Ontario. Umatilla County is home to the largest population base in Eastern Oregon, accounting for 42% of the region's residents. Hermiston, located in Umatilla County, is the largest city in the region, accounting for 10% of the population. Major industries include transportation/warehousing, timber, agriculture and tourism. The main transportation corridors are I-84, U.S. Route 395, U.S. Route 97, U.S. Route 26, U.S. Route 30, and U.S. Route 20.

<span class="mw-page-title-main">Mountain Time Zone</span> Time zone of North America

The Mountain Time Zone of North America keeps time by subtracting seven hours from Coordinated Universal Time (UTC) when standard time (UTC−07:00) is in effect, and by subtracting six hours during daylight saving time (UTC−06:00). The clock time in this zone is based on the mean solar time at the 105th meridian west of the Greenwich Observatory. In the United States, the exact specification for the location of time zones and the dividing lines between zones is set forth in the Code of Federal Regulations at 49 CFR 71.

<span class="mw-page-title-main">Pacific Time Zone</span> North American time zone

The Pacific Time Zone (PT) is a time zone encompassing parts of western Canada, the western United States, and western Mexico. Places in this zone observe standard time by subtracting eight hours from Coordinated Universal Time (UTC−08:00). During daylight saving time, a time offset of UTC−07:00 is used.

<span class="mw-page-title-main">Time in the United States</span> U.S. time zones

In the United States, time is divided into nine standard time zones covering the states, territories and other US possessions, with most of the country observing daylight saving time (DST) for approximately the spring, summer, and fall months. The time zone boundaries and DST observance are regulated by the Department of Transportation, but no single map of those existed until the agency announced intentions to make one in September 2022. Official and highly precise timekeeping services (clocks) are provided by two federal agencies: the National Institute of Standards and Technology (NIST) ; and the United States Naval Observatory (USNO). The clocks run by these services are kept synchronized with each other as well as with those of other international timekeeping organizations.

<span class="mw-page-title-main">Boise metropolitan area</span> Metropolitan statistical area in Idaho, United States

The Boise–Nampa, Idaho Metropolitan Statistical Area (MSA) is an area that encompasses Ada, Boise, Canyon, Gem, and Owyhee counties in southwestern Idaho, anchored by the cities of Boise and Nampa. It is the main component of the wider Boise–Mountain Home–Ontario, ID–OR Combined Statistical Area, which adds Elmore and Payette counties in Idaho and Malheur County, Oregon. It is the state's largest officially designated metropolitan area and includes Idaho's three largest cities: Boise, Nampa, and Meridian. Nearly 40 percent of Idaho's total population lives in the area.

<span class="mw-page-title-main">Malheur River</span> River in Oregon, United States

The Malheur River is a 190-mile-long (306 km) tributary of the Snake River in eastern Oregon in the United States. It drains a high desert area, between the Harney Basin and the Blue Mountains and the Snake.

<span class="mw-page-title-main">Drewsey, Oregon</span> Unincorporated community in the state of Oregon, United States

Drewsey is an unincorporated community in Harney County, in the U.S. state of Oregon. Drewsey is along the main stem of the Malheur River, about 45 miles (72 km) east of Burns, off U.S. Route 20. It has the ZIP Code of 97904.

<span class="mw-page-title-main">UTC−08:00</span> Identifier for a time offset from UTC of −8

UTC−08:00 is an identifier for a time offset from UTC of −08:00. This time is used:

<span class="mw-page-title-main">UTC−07:00</span> Identifier for a time offset from UTC of −7

UTC−07:00 is an identifier for a time offset from UTC of −07:00. In North America, it is observed in the Mountain Time Zone during standard time, and in the Pacific Time Zone during the other eight months. Some locations use it year-round.

<span class="mw-page-title-main">UTC−06:00</span> Identifier for a time offset from UTC of −6

UTC−06:00 is an identifier for a time offset from UTC of −06:00. In North America, it is observed in the Central Time Zone during standard time, and in the Mountain Time Zone during the other eight months. Several Latin American countries and a few other places use it year-round.

<span class="mw-page-title-main">Oregon Route 201</span> Highway in Oregon

Oregon Route 201 is a north–south state highway in eastern Oregon. It currently runs from the Idaho state line just south of Adrian to Interstate 84 south of Huntington. Between the state line and Succor Creek Road, it is known the Homedale Spur No. 490. Between Succor Creek Road and Nyssa, it is known as the Succor Creek Highway No. 450, including the Homedale Spur of the same highway. Between Nyssa and Cairo Junction, it is part of the Central Oregon Highway No. 7 as a concurrency with U.S. Route 20 and U.S. Route 26, and north of Cairo Junction, it is the Olds Ferry-Ontario Highway No. 455. At the Idaho state line, Oregon Route 201 becomes State Highway 19.

Qwest Corporation is a former Regional Bell Operating Company owned by Lumen Technologies. It was formerly named U S WEST Communications, Inc. from 1991 to 2000, and also formerly named Mountain States Telephone and Telegraph Company from 1911 to 1991. It includes the former operations of Malheur Bell, Northwestern Bell and Pacific Northwest Bell as well.

Malheur Home Telephone Company, commonly known as Malheur Bell, was a rural telephone company operating in Oregon. It was a wholly owned subsidiary of Qwest Corporation, the Bell Operating Company of Qwest Communications International.

<span class="mw-page-title-main">Bill Hanley (rancher)</span>

William D. Hanley was a pioneer rancher in Harney County in southeastern Oregon. He owned several ranches between Burns, Oregon and Harney Lake. Together, his properties comprised one of the largest privately owned cattle operations in the United States. Hanley was also a progressive thinker and well known host. Among his personal friends were leading political figures, fellow cattle barons, industrialist, writers, and artists including Theodore Roosevelt, William Howard Taft, William Jennings Bryan, Peter French, James J. Hill, CES Wood, and Will Rogers. Hanley's progressive political views led him to run for Governor of Oregon and the United States Senate. A strong advocate of wildlife conservation, much of his ranch is now part of the Malheur National Wildlife Refuge.

<span class="mw-page-title-main">Double-O Ranch Historic District</span> Historic district in Oregon, United States

The Double-O Ranch Historic District is located west of Harney Lake in Harney County in southeastern Oregon, United States. At one time, the Double-O Ranch covered over 17,000 acres (69 km2). The ranch was owned by Bill Hanley, a well-known cattle baron and Bull Moose progressive. In 1941, the United States Government purchased most of the Double O Ranch property and added it to the Malheur National Wildlife Refuge. The two remaining Double-O Ranch buildings are now listed on the National Register of Historic Places.

<span class="mw-page-title-main">Time in Idaho</span>

The U.S. state of Idaho is covered by two time zones, as described below. All locations observe daylight saving time.


  1. 49 CFR 71.9 : Boundary line between mountain and Pacific zones. Accessed June 25, 2012