title: Get the week number of the year counting from a given date in VB
body: <p>In vb we can get the week number counting from January. ex Jan 1st is Week 1 and Feb 1st is Week 5 etc by .DatePart(DateInterval.WeekOfYear, Now) </p>
  
  <p>I need to count the week number from a given date. ex: if set the base to July 1st then July 1st is the week 1 and based on that what would be the week number for Oct 3rd?  How can I do this in VB? </p>