‘Period’ is the year and period that uniquely identifies the calendar period. The calendars are defined in the format of CCYY-PP, where CC is the century, YY is the year and PP is the period. For example – period 2003-01 may be for April 15 to May 14, 2003. When users enter CCYYPP (200301), the dash (-) between the year and period will be automatically formatted by Personality to 2003-01. A monthly calendar for the calendar year Jan-Dec 2003 would have calendar periods 2003-01 through 2003-12. A weekly calendar for the fiscal year Apr2003-Mar2004 would have calendar periods 2004-01 through 2004-52 or 2004-53.