Im trying to create an Accouting Calender using Date::Calc but Im not sure where to start. Our business accounting calendar starts in Feb. Here are some details about our acct cal. In 2004 our acct cal started on Feb 1st - Feb 28(this is the 1st month). In 2005 the acct cal starts on Jan 30 - Feb 26 but is considered Feb accounting month. Feb, April, May, July, Aug, Oct, Nov, Jan are always 4(always 28 days) weeks long. Mar, Jun, Sep and Dec are all 5(always 35 days) weeks long. Anyone know of a module or how to start on the calculation? Thanks for your help, Taylor.