Hi, I trying to make this script work for me. That date is proving a problem. At first glance I thought it was a Unix timestamp for example 29/03/2008 (uk dates dd/mm/yyyy) comes out as 39536 (which isnít a unix timestamp on closer look). There is consistency 02/06/2008 is 39601 and 08/06/2008 is 08/06/2008 is 39607. Without getting into finding the date that these numbers start from and doing the math every time. Sure I could work that out with some effort, but have you a simpler solution. I am sure it works with US spreadsheets.