#BEGMTH
Returns the date of the first day of the month in which a date falls.
Syntax:
#BEGMTH date
Examples:
#BEGMTH 3/14/1967 equals 3/1/1967
#BEGMTH 10/17/2008 equals 10/1/2008
Related Operators:
#BEGMTH date is the same as -1 #MONTHROUND date.