I have a concern is that I want from a given date to retrieve the start date of the week for example: 15/04/2015 So the beginning of the week will: 13/04/2015 (for me the be
Try this Formula:-
=A1-WEEKDAY(A1,2)+1
Where A1 contains your Input Date.
Try this :-)
Dim FirstDayInWeek, LastDayInWeek As Variant
Dim dtmDate As Date
dtmDate = "15/04/2015"
The begin date of week:
FirstDayInWeek = dtmDate - Weekday(dtmDate, vbUseSystem) + 1
MsgBox FirstDayInWeek
The end date of Week
LastDayInWeek = dtmDate - Weekday(dtmDate, vbUseSystem) + 7
MsgBox LastDayInWeek