Get week number from datetime picker

Question

Hi Guys,

 Is there a way to get the week number of the year from a datetime picker value and display the number on a label, label1 for instance?

 As an example, if I was to select todays date, in theory it would display '26' on my label.

 

Can that be done? I know datetime pickers can display number of day, but not week for some reason.