Introduction.
How can we determine the weekend date or the first day of a week using the current date as input? Similarly, how can we calculate the first or last day of any week when given a specific date?
Such calculations are often required when preparing reports or queries when the week’s starting or ending date is used as a filter. For example, you may need the weekend date to group weekly sales, view filtered data, or print reports for distribution.
Wherever this is needed, you can use the following simple expression to calculate the weekend date of the current week:
The Simple Expressions
LastDayOfWeek = Date()- WeekDay(date())+7
If the current date is 14th June 2017 (or any date between 11 and 17 June 2017), then the value returned in variable LastDayOfWeek = 17th June 2017.
Example-1
To find the first-day date of the current week, use the following method:
FirstDayOfWeek = date()- WeekDay(date())+1
Assuming the current date is 14th June 2017 (or any date between 11 and 17 June 2017), the first-day date of the week returned in variable FirstDayofWeek = 11th June 2017.
Example-2
By giving a specific date as input to the expression to find the last day of the week:
dtValue = #06/27/2017# LastDayOfWeek = dtValue - WeekDay(dtValue)+7 Result: 1st July 2017
Example-3
If you would like to do it differently, then try the following expression:
x = #06/27/2017#
'To find the last-day date of the Week:
LastDayofWeek = DateSerial(Year(Date()),1,1)+DatePart("ww",x)*7-1
Result: 1st July, 2017
'To find the first-day date of the Week.
FirstDayofWeek = DateSerial(Year(Date()),1,1)+DatePart("ww",x)*7-7
Result: 25th June, 2017
WeekLastDay Function
Define it as a Function in a VBA Module and call it wherever you want, with a date value as the parameter. The Sample Function code is given below:
Public Function WeekLastDay(ByVal dtVal As Date) As Date 'Date value as input WeekLastDay = dtVal - WeekDay(dtVal) + 7 End Function
WeekFirstDay Function
Public Function WeekFirstDay(ByVal dtVal As Date) As Date
'Date value as input
WeekFirstDay = dtVal - WeekDay(dtVal) + 1
End Function
