Class Date.parseDate

Parses the passed string using the specified format. Note that this function expects dates in normal calendar
format, meaning that months are 1-based (1 = January) and not zero-based like in JavaScript dates. Any part of
the date format that is not specified will default to the current date value for that part. Time parts can also
be specified, but default to 0. Keep in mind that the input date string must precisely match the specified format
string or the parse operation will fail.
Example Usage:

//dt = Fri May 25 2007 (current date)
var dt = new Date();

//dt = Thu May 25 2006 (today's month/day in 2006)
dt = Date.parseDate("2006", "Y");

//dt = Sun Jan 15 2006 (all date parts specified)
dt = Date.parseDate("2006-1-15", "Y-m-d");

//dt = Sun Jan 15 2006 15:20:01 GMT-0600 (CST)
dt = Date.parseDate("2006-1-15 3:20:01 PM", "Y-m-d h:i:s A" );