Where it is observed: Most of the Western US and Canada are following Pacific Standard Time. This means that when the clock is noon in London (GMT), it is 4AM in Seattle (PST). » Click here for MDT to Local Time Conversion. Pacific Standard Time is the time of the Western United States and Canada and is typically abbreviated as PST. Given this, and the fact that not entire states observe the same time zone, it is always recommended to use a good time zone converter to convert specific locations’ times.» Click here for CAT to Local Time Conversion. Daylight Saving TimeĪside from Arizona and the Mexican state of Sonora, all other locations do observe DST, turning MST into MDT – Mountain Daylight Time. The largest city observing MST is Phoenix, followed by Denver and El Paso/Juarez. Example of cities observing Mountain Standard Time: In Mexico, it is only the states in the north western corner of the country, including Baja California, Sinaloa and Chihuahua that observe MST. In the US, Arizona, Colorado, Montana, Utah and Wyoming are all observing Mountain Time but there is also a bunch where part of the state observe MST and part another time zone, like CST or PST. The only province in Canada to be fully covered by MST is Alberta whereas other provinces like British Columbia and Northwest Territories are split between MST and PST. Mountain Time is observed in parts of Canada, the US and Mexico. In Mexico, this time zone is known as Zona Pacifico (Pacific Zone). The name Mountain Time comes from it covering the Rocky Mountains in Western United States. It is 7 hours behind UTC and turns into MDT in the summer. Mountain Standard Time is observed in the Western part of central US and Canada, as well as the North West corner of Mexico.

As always, it is better to look up the actual location than the timezone itself. It is important to note that with the exception of Panama, Jamaica and a couple of locations in Canada and the US most in this time zone do observe DST and thus switch to EDT in the summer. Also some Caribbean locations such as Jamaica, Haiti and Panama are in this time zone.

Locations such as New York, Washington, Quebec and Ontario are all on Eastern Standard Time. Most of the Eastern seaboard of the US observe EST, as well as most locations in Eastern Canada although there are a few exceptions. It is important to note that there is also Eastern Standard Time in Australia, but this is usually called AEST and thus not to be confused with EST. The origin of EST is the same as for most time zones – it was introduced when the railroad was built across the United States. It is in most places observed only in the winter months, from November to March. This is the standard time of the Eastern US, Canada and parts of the Caribbean.

Mst to pst time converter