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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 calendar. For the calendar of religious holidays...
- Calendar - Wikipedia
A calendar is a system of organizing days. This is done by...
- Year - Wikipedia
A calendar year is an approximation of the number of days of the Earth's orbital period, as counted in a given calendar. The Gregorian calendar, or modern calendar, presents its calendar year to be either a common year of 365 days or a leap year of 366 days, as do the Julian calendars.
A calendar is a system of organizing days. This is done by giving names to periods of time, typically days, weeks, months and years. [1] [2] [3] A date is the designation of a single and specific day within such a system. A calendar is also a physical record (often paper) of such a system.
Gregorian calendar. For the calendar of religious holidays and periods, see Liturgical year. For this year's Gregorian calendar, see Leap year starting on Monday. Not to be confused with Georgian calendar. The Gregorian calendar is the calendar used in most parts of the world.
Indice. 1 Struttura. 2 Astronomia. 2.1 Intercalazione. 3 I calendari più diffusi. 4 Numerazione degli anni. 5 Primo giorno dell'anno. 6 Bibliografia. 7 Voci correlate. 8 Altri progetti. 9 Collegamenti esterni. Struttura. Quasi tutti i calendari si basano su alcune unità di tempo fondamentali: la settimana, di sette giorni;
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.
Indice. 2 Storia. 3.1. 3.2. 3.3 ISO 8601. 4 Note. 5 Voci correlate. 6 Altri progetti. 7 Collegamenti esterni. Struttura. Il calendario mondiale è un calendario di dodici mesi organizzati in quattro trimestri di uguale lunghezza; esso è "perpetuo" nel senso che rimane identico ogni anno. [2] .
