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. Historically, this helped in the process of weather forecasting and train travel. The concept became established in the late 19th century. The time so set has come to be defined in terms of offsets from Universal Time. Where daylight saving time is used, the term standard time typically refers to the time without the offset for daylight saving time.
The adoption of Standard Time, because of the inseparable correspondence between time and longitude, solidified the concepts of halving the globe into an eastern and western hemisphere, with one Prime Meridian (as well its opposite International Dateline) replacing the various Prime Meridians that were in use.
Famous quotes containing the words standard and/or time:
“A disposition to preserve, and an ability to improve, taken together, would be my standard of a statesman.”
—Edmund Burke (1729–1797)
“When we choose to be parents, we accept another human being as part of ourselves, and a large part of our emotional selves will stay with that person as long as we live. From that time on, there will be another person on this earth whose orbit around us will affect us as surely as the moon affects the tides, and affect us in some ways more deeply than anyone else can. Our children are extensions of ourselves in ways our parents are not, nor our brothers and sisters, nor our spouses.”
—Fred Rogers (20th century)