weeknum() Function

Function

weeknum( date, methodology )

Returns the week number within the year for the given date using a given methodology.

Parameters

Keyword Type Description

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. The default value of methodology is 1.

Returns

Integer

1 is returned for any week that contains January 1st.

Usage considerations

  • The last days of the year will return 1 if the first day of the next year is within the same calendar week. For example, the date December 31, 2021 is on a Friday, so this will return 1 because the date January 1, 2022 is on the Saturday of that week.

Examples

weeknum(date(2011,12,13)) returns 51

Open in Github Built: Tue, May 24, 2022 (04:58:53 PM)

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