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:
“An indirect quotation we can usually expect to rate only as better or worse, more or less faithful, and we cannot even hope for a strict standard of more and less; what is involved is evaluation, relative to special purposes, of an essentially dramatic act.”
—Willard Van Orman Quine (b. 1908)
“How we shall earn our bread is a grave question; yet it is a sweet and inviting question. Let us not shirk it, as is usually done. It is the most important and practical question which is put to man. Let us not answer it hastily. Let us not be content to get our bread in some gross, careless, and hasty manner. Some men go a-hunting, some a-fishing, some a-gaming, some to war; but none have so pleasant a time as they who in earnest seek to earn their bread.”
—Henry David Thoreau (1817–1862)