Pacific time
1
- the standard time in a zone including the Pacific coastal region of Canada and the US, specifically太平洋标准时, 尤指：
1.1
- （Pacific Standard Time, 缩略词：PST）standard time based on the mean solar time at longitude 120° W, eight hours behind GMT.太平洋标准时（根据西经120度平均太阳时确定的标准时, 比格林尼治时迟八小时）。
1.2
- （Pacific Daylight Time, 缩略词：PDT）Pacific time during daylight saving, seven hours behind GMT.太平洋夏时制标准时（夏时制期间的太平洋标准时, 比格林尼治时迟七小时）。