Library: Date and time functions (OMDATE)
Returns: Returns the number of the day of the week.
define integer function ymd-weekday of value string ymd
ymd-weekday takes a date in
YYYYMMDD format and returns a numerical representation of the
day of the corresponding day of the week; Monday is day 1 and Sunday is day 7.
The following example outputs the numerical representation of the day of the week for the current date.
include "omdate.xin" process output "Today now-as-ymdhms = " || now-as-ymdhms || "%n" || "Today is a day number " || "d" % ymd-weekday of now-as-ymdhms || "%n"The output of this program might be
Today now-as-ymdhms = 20191031163322-0400 Today is a day number 4
ymd-weekday, you must include the following code near the top of your program: