superclass=Date
type=class
library=date
extended=
included=

դǤʤⰷ [[c:Date]] Υ֥饹Ǥ

=== ñʤĤ

  require 'date'

  a = DateTime.new(1993, 2, 24, 12, 30, 45)
  b = DateTime.parse('1993-02-24T12:30:45')
  b += 10

  b - a            #=> 10
  b.year           #=> 1993
  b.strftime('%a') #=> "Sat"

  yesterday = DateTime.now - 1
