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Dionysius Exiguus: sixth-century scholar who, when compiling a table of dates of Easter, adopted the birth of Christ as the initial epoch of the Christian calendar. Source: Wikipedia
The Julian calendar: in 45 BC, Julius Caesar inserted 90 days to bring the months of the Roman calendar back to their traditional place with respect to the seasons. This was his first step in replacing a calendar that had gone badly wrong. Caesar created a solar calendar with twelve months of fixed lengths and a provision for a day to be added every fourth year. It served as a standard for European civilization until the Gregorian Reform of 1582. Source: Wikipedia
Calendar (1993): written, directed and starring Atom Egoyan. Source: IMBd
146097: the Gregorian calendar is based on a cycle of 400 years, which comprises 146097 days. Since 146097 is evenly divisible by 7, the Gregorian civil calendar exactly repeats after 400 years. Dividing 146097 by 400 yields an average length of 365.2425 days per calendar year, which is a close approximation to the length of the tropical year.
Time machine: (especially in stories and films) a machine in which people can travel into the past or the future.
Cambridge Dictionaries Online
As Time Goes By by Barbra Streisand
See lyrics
Father Time Cookies
See recipe
A stitch in time (saves nine): something that you say which means it is better to deal with a problem early before it gets too bad. If you don't repair the oil leak now, you might damage the whole engine. It's a case of a stitch in time.
Cambridge Dictionaries Online
A Chanted Calendar by Sydney Dobell
Read poem
February 24, 1582: the recommendations of Pope Gregory's calendar commission were instituted by the papal bull "Inter Gravissimus", and thus the Gregorian calendar – which still serves today as an international standard for civil use – came into use.
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