Pacific Standard Time (PST) or UTC/GMT -8

Time Zones in the United States.

The Pacific Time Zone refers to a time zone which observes standard time by subtracting eight hours from Greenwich Mean Time (UTC/GMT -8). Time in this zone is based on the mean solar time of the 120th meridian west of the Greenwich Observatory. During daylight saving time, its time offset is GMT -7.

Pacific Time (PT)

In the United States and Canada, this time zone is generically called Pacific Time (PT). Specifically, it is Pacific Standard Time (PST) when observing standard time (Winter), and Pacific Daylight Time (PDT) when observing daylight saving time (Summer).

Effective since 2007, the local time changes from PST to PDT at 02:00 LST to 03:00 LDT on the second Sunday in March, and returns at 02:00 LDT to 01:00 LST on the first Sunday in November, in the U.S.A. as well as in Canada.

Daylight Saving Time Information

The Beginning and end dates of the daylight saving time in the United States and in Canada. Daylight saving time starting and ending dates are slightly different in Mexico comparing to Canada and the USA dates which are presented here. A few of the Mexocan border cities follow the USA dayligth saving times though.

North American Time Zones

The time zones in North America, in the west from Hawaii and Alaska to the east cost of USA and Canada and all the way to Nova Scotia and Newfoundaland.

GMT and UTC

Greenwich Mean Time (GMT) is originally referring to mean solar time at the Royal Observatory in Greenwich, London. GMT and Coordinated Universal Time (UTC) can be seen equivalent when fractions of a second are not important.