||set the month and day fields of a Date (universal
The month, expressed in universal time, to be set in
date. This argument should be an integer
between 0 ( January) and 11 (December). Note that months are numbered
beginning with 0, while days within the month are numbered beginning
An optional integer, between 1 and 31 that is used as the new value
(in universal time) of the day-of-month field of
The millisecond representation of the adjusted date.