Describes monthly dates in last week of month like “the last Tuesday of
A specific integer for the day of the week.
0 is Monday
1 is Tuesday
2 is Wednesday
3 is Thursday
4 is Friday
5 is Saturday
6 is Sunday.
Returns a copy of the calling offset object with n=1 and all other attributes equal.
Call self as a function.
Roll provided date backward to next offset only if not on offset.
Roll provided date forward to next offset only if not on offset.