TimeExtra
Extra functionality for Posix
All computations use Time.utc
fromY
Will create a Posix date with day 1 and month 1
fromYM
Will create a Posix date with day 1
fromYMD
Will crate a Posix date
fromYMDH
Will create a Posix date
fromYMDHM
Will create a Posix date
fromYMDHMS
Will create a Posix date
fromYMDHMSM
Will create a Posix date
isLeapYear
daysInMonth
returns the number of days in a month
epoch