>Hi,
>
>Please help me to make sure that I understand the first parameter of the function Week()
>I usually use 3 as the second parameter - First week has seven days. And in my app the first day of the week is Monday.
>
>So my use is
>

>nWeek = week( dSomeDate, 3, 2 )
>

>
>Do I understand the if I take the date of the 1st of 2016 (ctod('01/01/2016')), even though it is in the 1st calendar week of the year, it is NOT week not week 1 because the Monday falls on the previous week? Therefore week 1 is the week of the 1st Monday. Correct?

It's the 52nd week of 2015, under the rules set by the parameters.