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AdvanceDateByMonths

Advances a date by set number of months, even where the day of the month doesn't exist in the resultant month

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Kris Weyling - Show more from this author Digital Fusion Ltd. http://teamdf.com

  Function definition: (Copy & paste into FileMaker's Edit Custom Function window)

// Takes a date and advances it by X number of months // Fixes cases where the resultant month doesnt have the same amount of days // Eg, adding 3 months to 31/12/2018 would otherwise result in 2/3/2019, when it should be 28/12/2019 // The function enforces that Let ( [ nextmonth = Date ( Month ( startdate ) + months_inc ; 1 ; Year ( startdate ) ) ; newdate = Date ( Month ( startDate ) + months_inc ; Day ( startDate ) ; Year ( startDate ) ) ] ; Case ( Date ( Month ( startdate ) + months_inc ; 1 ; Year ( startdate ) ) < Date ( Month ( newdate ) ; 1 ; Year ( newdate ) ) ; Date ( Month ( newdate ) ; 1 ; Year ( newdate ) ) - 1 ; newdate ) ) Click to copy

Takes a date and advances it by X number of months

Fixes cases where the resultant month doesn't have the same amount of days

Eg, adding 3 months to 31/12/2018 would otherwise result in 2/3/2019, when it should be 28/12/2019

The function enforces that

 

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