Astronomical year numbering is based on AD/CE year numbering, but follows normal decimal integer numbering more strictly. Thus, it has a year 0; the years...

this system, the year 1 BC is followed directly by year AD 1. However, there is a year zero in both the astronomical year numbering system (where it coincides...

preceding years referred to as Before the Common Era (BCE). Astronomical year numbering and ISO 8601 avoid words or abbreviations related to Christianity...

the proleptic Julian calendar is a leap year. This is to be distinguished from the astronomical year numbering, introduced in 1740 by French astronomer...

calendars. Years are given in astronomical year numbering. Within these tables, January 1 is always the first day of the year. The Gregorian calendar did...

A year is the time taken for astronomical objects to complete one orbit. For example, a year on Earth is the time taken for Earth to revolve around the...

proposed solar calendars: Assamese calendar Assyrian calendar Astronomical year numbering Badí‘ calendar Basotho calendar Bengali calendar Gregorian calendar...

computer, the astronomical year numbering and ISO 8601 systems both contain a year zero, with the astronomical year 0 corresponding to the year 1 BC, the...

collision between the Milky Way and Andromeda". Monthly Notices of the Royal Astronomical Society. 386 (1). Oxford University Press (OUP): 461–474. arXiv:0705...

Zero-based numbering is a way of numbering in which the initial element of a sequence is assigned the index 0, rather than the index 1 as is typical in...