Returns the week number within the year for the given date using a given methodology.
weeknum( date, [methodology] )
date: (Date) The date for which the week number will be determined.
methodology: (Integer) Controls what day is the first of the week with 1 correlating with the week beginning on Sunday and 2 correlating with the week beginning on Monday, enter 2.
Integer
The default value of methodology is 1.
You can experiment with this function in the test box below.
Test Input
weeknum(date(2011,12,13)) returns 51
