Library: Date and time functions (OMDATE) Include: omdate.xin

Return type: Integer Returns: Returns the Julian day of the specified date, with 1 January being day number 1 (one).

Declaration

define integer function ymdhms-julian-day-count value string ymd

Argument definitions

ymd

a date in "YYYYMMDD" format

This function takes a date in "YYYYMMDD" format and returns the "Julian day" -- the number of the day within the year, with 1 January being day number 1 (one). The argument for this function can be longer, but the part beyond the date is ignored.

Example

  include "omdate.xin"
  process
     output "Julian day number of today = "  
        || "d" % (ymdhms-julian-day-count now-as-ymdhms) 
        || "%n"
  ; Result of this code, run on Feb. 19, 2001:
  ;    Julian day number of today = 50

Other Library Functions add-to-ymdhms arpadate-to-ymdhms format-ymdhms now-as-ymdhms round-down-ymdhms round-up-ymdhms ymdhms-adjust-time-zone ymdhms-day-difference ymdhms-julian-day-count ymdhms-month-difference ymdhms-second-difference ymdhms-to-arpadate ymd-weekday

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