Equations: "Last Sunday in January"... and 25 more

Generate equations for the following dates-of-the-month. This is a small project for someone who is good at modular arithmatic. Most of these will have a format, like: (2 + 6 * thisYear - floor (thisYear / 4) ) % 7 + 1 OR 31 -( floor (thisYear * 5 / 4) + 1) % 7 If you need more complexity for some, you can write in a syntax similar to C or Javascript. -------- Last Sunday in January Third Sunday in February Second Sunday in March First Friday on or after 15 April Third Sunday in March Last Thursday of March Last Sunday in March Fourth Friday in March First Sunday in April Last Friday before April 2 First Sunday on or after 6 April First Friday in April Last Friday in April First Sunday in April Last Thursday in September Last Friday in September First Sunday in September First Sunday on or after 8 September First Sunday in October First Friday on or after 15 October Third Sunday in October Last Friday in October Last Sunday in October First Sunday in November The Sunday between Rosh Hashana and Yom Kippur -- Refer to: [login to view URL] -------- Thanks, I look forward to your bid. - Michael