--- Time.parse(date, now=Time.now)
--- Time.parse(date, now=Time.now) {|year| year}

    dateParseDate.parsedate [ParseDate/ParseDate.parsedate]ˤä
    ѡTime֥ȤѴޤ

    ֥åդǸƤФ줿硢dateǯϥ֥åˤäѴޤ

    :
        Time.parse(...) {|y| y < 100 ? (y >= 69 ? y + 1900 : y + 2000) : y}

    Ϳ줿˾̤ǤʤäƤ硢now
    ǤȤޤ
    ̤ǤʤäƤ硢Ǿ(10)Ȥޤ

    :
        # ߻郎 "Thu Nov 29 14:33:20 GMT 2001" 
        # ॾGMTȤ:
        Time.parse("16:30")     #=> Thu Nov 29 16:30:00 GMT 2001
        Time.parse("7/23")      #=> Mon Jul 23 00:00:00 GMT 2001
        Time.parse("2002/1")    #=> Tue Jan 01 00:00:00 GMT 2002
    ParseDatedateФʤȤޤ
    Time饹ꤵ줿ɽǤʤȤArgumentError
    ȯޤ

    Υ᥽åɤ¾Υѡѥ᥽åɤΥե륻դȤưʲΤ褦˻ѤǤޤ:
      Time.rfc2822(date) rescue Time.parse(date)
      Time.httpdate(date) rescue Time.parse(date)
      Time.xmlschema(date) rescue Time.parse(date)

    äTime.parse [time.rb/Time.parse]μԤϥå٤Ǥ

