WORKDAY

This function returns the number of working days before or after the starting date.

WORKDAY(startdate,numdays,holidays)

This function has these arguments:

Argument	Description
startdate	Date that is the starting date; a number (as in 37806.5), or a DateTime object, as in DATE(2003,7,4)
numdays	Number of non-weekend or non-holiday days before or after the starting date; days in the future are positive and days in the past are negative; if not an integer, the number is truncated
holidays	[Optional] Range of dates to exclude from the calculation; if omitted, the calculation assumes no holidays and all weekdays are workdays

Accepts numeric, string, or DateTime object data. Returns numeric data.

WORKDAY(A2,A4)

WORKDAY(R2C1,R5C5)

WORKDAY(A1,A2,A5:A7)