weeknum() Function

Function

weeknum( date, methodology )

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

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`.

Integer

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

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.

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

The table below lists this function's compatibility with various features in Appian.

Feature	Compatibility	Note
Portals	Compatible
Offline Mobile	Compatible
Sync-Time Custom Record Fields	Compatible	Can be used to create a custom record field that only evaluates at sync time.
Real-Time Custom Record Fields	Incompatible	Custom record fields that evaluate in real time must be configured using one or more Custom Field functions.
Process Reports	Compatible
Process Events	Compatible

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