UTC-7

UTC−07:00 is a time offset that subtracts 7 hours from Coordinated Universal Time (UTC). This time is used in several regions across the world, primarily in North America. It is also known as Mountain Standard Time (MST) during standard time and Pacific Daylight Time (PDT) during daylight saving time.

Regions using UTC−07:00

North America

• United States

 * Arizona (except the Navajo Nation)
 * Parts of Idaho, Montana, Wyoming, Colorado, New Mexico, Utah, and Nevada
 * Oregon (except Malheur County)
 * Kansas (Greeley, Hamilton, Sherman, and Wallace counties)
 * Nebraska (western part)
 * North Dakota (southwestern part)
 * Texas (El Paso and Hudspeth counties)

• Canada

 * British Columbia (Peace River Regional District and Northern Rockies Regional Municipality)
 * Alberta
 * Northwest Territories
 * Nunavut (Kitikmeot Region)

Mexico

• Mexico

 * Baja California Sur
 * Chihuahua
 * Nayarit
 * Sinaloa
 * Sonora

South America

• Chile

 * Easter Island

Daylight Saving Time

In regions that observe daylight saving time, UTC−07:00 is used during the summer months. For example, in the United States, areas that observe Mountain Daylight Time (MDT) switch to UTC−06:00 during daylight saving time.

History

The concept of time zones was first proposed by Sir Sandford Fleming in the late 19th century. The adoption of standard time zones was facilitated by the International Meridian Conference in 1884, which established the prime meridian at Greenwich, England, and divided the world into 24 time zones.

Impact on Society

Time zones like UTC−07:00 play a crucial role in synchronizing activities across different regions. They affect various aspects of daily life, including business operations, travel schedules, and broadcasting.

Also see

• UTC−06:00
• UTC−08:00
• Mountain Time Zone
• Pacific Time Zone
• Daylight saving time