EOMONTH /text/scalc/01/func_eomonth.xhp EOMONTH function EOMONTH Returns the date of the last day of a month which falls months away from the start date. Syntax EOMONTH(StartDate; Months) StartDate is a date (the starting point of the calculation). Months is the number of months before (negative) or after (positive) the start date. Example What is the last day of the month that falls 6 months after September 14 2001? =EOMONTH(9.14.2001;6) returns 3.31.2002.