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The Gregorian year, which is in use in most of the world, begins on January 1 and ends on December 31. It has a length of 365 days in an ordinary year, with 8760 hours, 525,600 minutes, or 31,536,000 seconds; but 366 days in a leap year, with 8784 hours, 527,040 minutes, or 31,622,400 seconds.
- Year - Wikipedia
A calendar year is an approximation of the number of days of...
- Gregorian calendar - Wikipedia
Gregorian years are identified by consecutive year numbers....
- Calendar - Wikipedia
A calendar is a system of organizing days. This is done by...
- Year - Wikipedia
Struttura. Quasi tutti i calendari si basano su alcune unità di tempo fondamentali: la settimana, di sette giorni; il mese, di circa quattro settimane; l' anno, in genere di dodici mesi.
Specialized usage. Day and year only. Week number used. Expressing dates in spoken English. See also. Notes. References. External links. Calendar date. A calendar date is a reference to a particular day represented within a calendar system. The calendar date allows the specific day to be identified.
The Gregorian calendar is the calendar that is used throughout most of the world. It began being used in 1582. It replaced the previous Julian calendar because the Julian calendar had an error: it added a leap year (with an extra day every four years) with no exceptions.
