DateDiff Function [Runtime]/text/sbasic/shared/03030120.xhpDateDiffcheckedDateDiff functionDateDiff Function [Runtime]Returns the number of date intervals between two given date values.Syntax:DateDiff (Add, Date1, Date2 [, Week_start [, Year_start]])Return value:A number.Parameters:Add - A string expression from the following table, specifying the date interval.Date1, Date2 - The two date values to be compared.Week_start - An optional parameter that specifies the starting day of a week.
Week_start valueExplanation0Use system default value1Sunday (default)2Monday3Tuesday4Wednesday5Thursday6Friday7Saturday
Year_start - An optional parameter that specifies the starting week of a year.
Year_start valueExplanation0Use system default value1Week 1 is the week with January, 1st (default)2Week 1 is the first week containing four or more days of that year3Week 1 is the first week containing only days of the new year
Example:Sub example_datediff MsgBox DateDiff("d", "1/1/2005", "12/31/2005")End Sub