Calendar date

A date in a calendar is a reference to a particular day represented within a calendar system. The calendar date allows the specific day to be identified. The number of days between two dates may be calculated. For example, "19 February 2003" is ten days after "9 February 2003" in the Gregorian calendar. The date of a particular event depends on the time zone in which it occurs. For example the attack on Pearl Harbor took place on 7th December 1941, in Hawaii, but on 8th December in Japan.
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