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this unit 1.17
sub units 1.87
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UnitsDate

year

viewed 2127 times and licensed 41 times
Extracts the year from a serial Julian date. Excel: MONTH
Controller: CodeCogs

Dependents

Info

Interface

C++

Year

 
intyearintnDate
calendardateSystem )[inline]
Returns the year contained within a serial Julian date as an integer. This function uses dateYMD, to convert the serial Date into a day/ month/ year, from which the year is returned.

Example 1

#include <stdio.h>
#include <codecogs/units/date/year.h>
using namespace Units::Date;
 
int main()
{
  printf("\n The year is %d", year(1741667));               // The year is 0056
  printf("\n The year is %d", year(1841667, cal_Julian));   // The year is 0330
  return 0;
}

  • cal_Gregorian - n.b. there is an optimised year function for Gregorian dates.
  • cal_Julian - the only sensible mode (for the time being!!)
  • cal_Excel (same as Gregorian)

Note

It may be faster to simply use dateYMD, particularly if you also need the day and year from a date.

Parameters

nDateis a serial number of days from 24 November 4714 BC (1 January 4713BC in the Julian Calendar) - also known as the Julian Period.
dateSystemselects which date system should be used (see constants):

Authors

Will Bateman (Sep 2004)
Source Code

Source code is available when you agree to a GP Licence or buy a Commercial Licence.

Not a member, then Register with CodeCogs. Already a Member, then Login.


Year

 
intyearintnDate )[inline]
Returns as an integer the Gregorian year for the serial Julian date, nDate. This function performs the following calculation: where all division are integer divisions with the remainder discarded.

References:

www.ortelius.de/kalender/calc_en.php

Example 2

#include <stdio.h>
#include <codecogs/units/date/year.h>
using namespace Units::Date;
 
void main()
{
  printf("\n The year is %d", year(27325));          // The year is 1974
  printf("\n The year is %d", year(169304));         // The year is 2367
}

Note

If you require the day, month and year from the Julian Date it may be faster to simply use dateYMD, particularly if you need two or more parts of a date.

Parameters

nDateis a serial number of days from 24 November 4714 BC (1 January 4713BC in the Julian Calendar) - also known as the Julian Period.

Authors

Will Bateman (Sep 2004)
Source Code

Source code is available when you agree to a GP Licence or buy a Commercial Licence.

Not a member, then Register with CodeCogs. Already a Member, then Login.