standard time

standard time

noun

Definition of STANDARD TIME

: the time of a region or country that is established by law or general usage as civil time; specifically : the mean solar time of a meridian that is a multiple of 15 arbitrarily applied to a local area or to one of the 24 time zones and designated as a number of hours earlier or later than Greenwich time

First Known Use of STANDARD TIME

1879

Rhymes with STANDARD TIME

access time, aftertime, anytime, beforetime, Bettelheim, borrowed time, central time, Christmastime, common time, dinnertime, double prime, double-time, drop a dime, eastern time, elapsed time, Father Time, harvesttime, Hildesheim, in jig time, just-in-time, Kaffir lime, lemon thyme, local time, lysozyme, Mannerheim, maritime, monorhyme, mountain time, nursery rhyme, on a dime, overtime, pantomime, Pappenheim, paradigm, question time, released time, running time, soda lime, summertime, take one's time, vowel rhyme, wintertime

standard time

noun    (Concise Encyclopedia)

Official local time of a region or country. Local mean solar time depends on longitude; it advances by four minutes per degree eastward. The Earth can thus be divided into 24 standard time zones, each approximately 15° in longitude. The actual boundaries of each time zone are determined by local authorities and in many places deviate considerably from 15°. The times in different zones usually differ by an integral number of hours; minutes and seconds are the same. See also Greenwich Mean Time.