The time in Greenwich, England, used by scientists by synchronize events. Standard Time is also called Universal Time and Greenwich Mean Time. To find out what the Universal time is click here. Warning! This can be slow
the official time in a local region (adjusted for location around the Earth); established by law or custom
In most cases, standard time is based upon some meridian of longitude which differs by a multiple of 15° from the Greenwich Meridian i.e. standard time differs from Greenwich Mean time by a multiple of hours. Standard Time for the UK is Greenwich Mean Time and that for France would be Central European Time (CET) being one hour ahead of GMT. However there are some places where fractions of hours are used as well. Standard Time is not the same as local time when daylight savings time (summer time) is in effect.
(ST, S.T.) The time in any of 24 time zones, usually the mean solar time at the central meridian of each zone. In the continental United States, there are four standard time zones: Eastern, using the 75th meridian; Central, using the 90th meridian; Mountain, using the 105th meridian; and Pacific, using the 120th meridian.
A kind of time based upon the transit of the Sun over a certain specified meridian, called the time meridian, and adopted for use over a considerable area. With a few exceptions, standard time is based upon some meridian which differs by a multiple of 15* from the meridian of Greenwich. the United States first adopted standard time in 1883 on the initiative of the American Railway Association, and at noon on November 18 of that year the telegraphic time signals from the Naval Observatory at Washington were changed to this system.
Time adopted in modern time zones. This is not true local or Mean Time and must be corrected according to longitude for the accurate calculation of horoscopes.
Standard time is the result of synchronizing clocks in different geographical locations within a time zone to the same time rather than using the local meridian as in local mean time or solar time. The time so set has come to be defined in terms of offsets from universal time. (See more about standard time.)
In business efficiency studies, Standard Time (an Industrial Engineering term) is the time required for a person to complete a task or operation at a defined rate of working. It includes appropriate allowances to allow the person to recover from fatigue and, where necessary, an additional allowance to cover contingent elements which may occur but have not been observed.
