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FirstMonday ( themonth ; theyear )

Returns the date for the first Monday in a given month

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Theo Ros - Show more from this author

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

/* ---------------------------------------------------------- Returns the date for the first Monday in month 'themonth' and year 'theyear' In: themonth - integer value 1 to 12 for the month theyear - integer value for the year if empty, the function uses the current date Return type: Date Syntax: FirstMonday ( month ; year ) FirstMonday ( 5 ; 2005 ) returns May 2, 2005 Author - Theo Ros ----------------------------------------------------------*/ Let ( [ m = If ( IsEmpty ( themonth ) or themonth < 1 or themonth > 12 ; Month ( Get ( CurrentDate ) ) ; themonth ) ; y = If ( IsEmpty ( theyear ) ; Year ( Get ( CurrentDate ) ) ; theyear ) ] ; Date ( m ; Mod ( 2 - DayOfWeek ( Date ( m ; 1 ; y ) ) + 7 ; 7 ) + 1 ; y ) ) Click to copy

Returns the date for the first Monday in month
'themonth' and year 'theyear'

In: themonth - integer value 1 to 12 for the month
theyear - integer value for the year
if empty, the function uses the current date

Return type: Date

 

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