if i use strftime("%V",time()) it works fine, but the switch is not mentioned in the manual, it is however mentioned if I do 'man strftime' on a mandrake 7 linux box

     %V     The  ISO  8601:1988 week number of the current year as a decimal number, range 01 to 53, where week 1 is
              the first week that has at least 4 days in the current year, and with Monday as the  first  day  of  the
              week. See also %U and %W. (SU)

/Martin Jespersen