Jan = 23 minus one day for New Years = 22
Feb = 21
March = 21
April = 22
May = 22 minus one for Memorial day = 21
June = 21
July = 23 minus one day for the 4th = 22
Aug = 21
Sept = 22 minus...
2009 Month
Working Days
January 22 (actually 21 due to Bank Holiday)
February 20
March 22
April 22 (actually 20 due to two Bank Holidays)
May 21 (actually 19 due to two Bank Holidays)
June...