…a uniform time for places in approximately the same longitude, established in a country or region by law or custom…
…the standard time in a zone including the Hawaiian Islands and the western Aleutian Islands, specifically…
…the standard time in a zone including the easternmost parts of mainland Canada, Puerto Rico, and the Virgin Islands, specifically…
…the standard time in a zone that includes the central states of the US and parts of central Canada, specifically…
…the standard time in a zone including the eastern states of the US and parts of Canada, specifically…
…the standard time in a zone including parts of the US and Canada in or near the Rocky Mountains, specifically…
…the standard time in a zone including the Pacific coastal region of the US and Canada, specifically…
…standard time based on the mean solar time at longitude 150° W., ten hours behind GMT. Also called Hawaiian Standard Time…
