                      date2 - ⤦ҤȤĤշ׻饹

Date

  Ѹ

   ĤѸϡISO 8601 JIS X 0301 ˴Ťޤ

    

   դϡǯνˤä ꤵ
   դǤ

   ĤޤꡢǯˤդǤ

    ǯ̻ (ǯ)

   ǯ̻ (ǯ) ϡǯǯνˤäƻꤵ
   դǤ

    

   դϡ񽵤ǯνˤդǤ

   񽵤ϡǯνˤäƻꤵ7δ֤Ǥꡢˤ
   Ϥޤޤǯ1񽵤ϡǽޤཱུȤޤϡ1
   4ޤཱུƱǤ

    ꥦ

   ꥦϵ4713ǯ11 (ꥦ)  (˥åʿѻ) 
   񸵤Ȥ (в) Ǥ

   ʸǡŷʸŪʥꥦȤϡΥꥦƱΤǤ
   ޤǯŪʥꥦȤϡˤλϤޤȤ
   ήǤ

   ʸǡñˡ֥ꥦפȤä硢ΥꥦǤ
   ǯŪʥꥦפ̣Ƥޤ

    ꥦ

   ꥦ1858ǯ1117 (쥴ꥪ)  () 
   񸵤Ȥ (в) Ǥ

   ʸǡŷʸŪʽꥦȤϡνꥦƱ
   ΤǤޤǯŪʽꥦȤϡˤ
   ϤޤȤήǤ

   ʸǡñˡֽꥦפȤä硢νꥦ
   ǤʤǯŪʽꥦפ̣Ƥޤ

  ѡ饹

   Object

  󥯥롼ɤƤ⥸塼

   Comparable

  饹᥽å

   civil([year[, mon[, mday[, start]]]])
   new([year[, mon[, mday[, start]]]])
          դե֥Ȥޤ

          Υ饹ǤϡǯŷʸؤήǴꤷޤ 1ǯ
          ǯǯ-1ǯΤ褦ˤޤ ӷ顢
          ޤοǤʤФʤޤ (ΤȤϺǸ夫ν)
          ǤäƤϤʤޤ

          Ǹΰϡ쥴ꥪĤϤ᤿򤢤魯ꥦ
          Ǥ 쥴ꥪλȤƿꥦλȤƵͿ
          뤳ȤǤޤ άϡDate::ITALY (1582ǯ1015
          ) ˤʤޤ

          jd ⻲ȤƤ

   commercial([cwyear[, cweek[, cwday[, start]]]])
          դե֥Ȥޤ

          ӽ () 顢 ޤοǤʤФʤޤ
          (ΤȤϺǸ夫ν) ǤäƤϤʤޤ

          Υ᥽åɤ˲դͿ뤳ȤϤǤޤ

          jd new ⻲ȤƤ

   jd([jd[, start]])
          ꥦե֥Ȥޤ

          Υ饹ΤĤνפʥ᥽åɤǡ Υꥦݾڤ
          ޤ

          new ⻲ȤƤ

   ordinal([year[, yday[, start]]])
          ǯ̻ (ǯ) ե֥Ȥޤ

          顢 ޤοǤʤФʤޤ (ΤȤϺǸ夫
          ν) ǤäƤϤʤޤ

          jd new ⻲ȤƤ

   parse(str[, complete[, start]])
          Ϳ줿ɽϤ ξ˴Ťե֥
          ޤ

          άǤǸΰǡǯ099ϰϤǤС ǯβ2
          ɽǤȤߤʤ䤤ޤ ʤάϡ
          ߤʤޤ

          _parse ѤǤޤ Υ᥽åɤ parse ȻƤޤ
          ե֥Ȥˡ Ǥϥå֤ޤ
          

   strptime(str[, format[, start]])
          Ϳ줿ɽϤ ξ˴Ťե֥
          Ȥޤ

          _strptime ѤǤޤ Υ᥽åɤ strptime ȻƤޤ
          ե֥ˡ Ǥϥå֤
          ޤ

          strptime(3) strftime ⻲ȤƤ

   today([start])
          ߤդե֥Ȥޤ

   valid_civil? (year, mon, mday[, start])
   valid_date? (year, mon, mday[, start])
          դǤСꥦ֤ޤ Ǥʤ
          ʤ顢֤ޤ

          jd civil ⻲ȤƤ

   valid_commercial? (cwyear, cweek, cwday[, start])
          դǤСꥦ֤ޤ Ǥ
          ʤ顢֤ޤ

          jd commercial ⻲ȤƤ

   valid_jd? (jd[, start])
          ҤȤܤΰ򤽤Τޤ֤ޤ

          оΤѰդƤޤºŪ˰̣Ϥޤ

          jd ⻲ȤƤ

   valid_ordinal? (year, yday[, start])
          ǯ̻ (ǯ) ǤСꥦ֤
           Ǥʤʤ顢֤ޤ

          jd ordinal ⻲ȤƤ

  ᥽å

   self + n
          self  n ե֥Ȥ֤ޤ n ϿͤǤʤ
          Фʤޤ

   self - x
          x ե֥Ȥʤ顢դĤκ֤ޤ 뤤 x 
          ͤʤСself  x դ֤ޤ

   self << n
          self  n ե֥Ȥ֤ޤ n ϿͤǤʤ
          Фʤޤ

   self <=> other
          դĤӤ-1뤤 1 ֤ޤ other ե
          ֥Ȥ ŷʸŪʥꥦ򤢤魯ͤǤʤФʤ
          ޤ

   self === other
          Ʊʤ鿿֤ޤ

   self >> n
          self  n ե֥Ȥ֤ޤ n ϿͤǤʤ
          Фʤޤ

   asctime
   ctime
          asctime(3) 񼰤ʸ֤ޤ ( "\n\0" Ͻ
          )

   cwday
          񽵤 () ֤ޤ (1-7ˤ1)

   cweek
          񽵤֤ޤ (1-53)

   cwyear
          񽵤ˤǯ֤ޤ

   downto(min){|date| ...}
          Υ᥽åɤϡstep(min, -1){|date| ...} Ǥ

   england
          Υ᥽åɤϡnew_start(Date::ENGLAND) Ǥ

   gregorian
          Υ᥽åɤϡnew_start(Date::GREGORIAN) Ǥ

   italy
          Υ᥽åɤϡnew_start(Date::ITALY) Ǥ

   jd
          ꥦ֤ޤ ޤߤޤ

          rjd ѤǤޤ Υ᥽åɤ jd ȻƤޤŷʸŪ
          ʥꥦ֤ޤ ޤߤޤ

   julian
          Υ᥽åɤϡnew_start(Date::JULIAN) Ǥ

   leap?
          ǯʤ鿿֤ޤ

   mday
   day
          ֤ޤ (1-31)

   mjd
          ꥦ֤ޤ ξޤߤޤ

          rmjd ѤǤޤ Υ᥽åɤ mjd ȻƤޤŷʸ
          Ūʽꥦ֤ޤ ޤߤޤ

   mon
   month
          ֤ޤ (1-12)

   new_start([start])
          self ʣơβꤷʤޤ ά
          ϡDate::ITALY (1582ǯ1015) ˤʤޤ

          new ⻲ȤƤ

   start
          򤢤魯ꥦ֤ޤ

          new ⻲ȤƤ

   step(limit, step){|date| ...}
          ֥åɾ򷫤֤ޤ֥åե֥ȤȤ
          ޤ limit ե֥ȤǤʤФʤޤ ޤ step
          ǤʤФʤޤ

   strftime([format])
          Ϳ줿դ񼰤Ťޤ ĤѴͤ򤢤Ĥ
          :

          %A, %a, %B, %b, %C, %c, %D, %d, %e, %F, %G, %g, %H, %h, %I, %j,
          %k, %l, %M, %m, %n, %P, %p, %R, %r, %S, %s, %T, %t, %U, %u, %V,
          %v, %W, %w, %X, %x, %Y, %y, %Z, %z, %%, %+

          strftime(3) strptime ⻲ȤƤ

   succ
   next
          ե֥Ȥ֤ޤ

   to_s
          ISO 8601 񼰤ʸ֤ޤ (ɽϤĤޤ)

   upto(max){|date| ...}
          Υ᥽åɤϡstep(max, 1){|date| ...} Ǥ

   wday
          ֤ޤ (0-6)

   yday
          ǯ֤ޤ (1-366)

   year
          ǯ֤ޤ

DateTime

  ѡ饹

   Date

  饹᥽å

   civil([year[, mon[, mday[, hour[, min[, sec[, offset[, start]]]]]]]])
   new([year[, mon[, mday[, hour[, min[, sec[, offset[, start]]]]]]]])
          դ֥Ȥޤ

   commercial([cwyear[, cweek[, cwday[, hour[, min[, sec[, offset[,
          start]]]]]]]])
          դ֥Ȥޤ

   jd([jd[, hour[, min[, sec[, offset[, start]]]]]])
          ꥦ֥Ȥޤ

   now([start])
          ߤλ֥Ȥޤ

   ordinal([year[, yday[, hour[, min[, sec[, offset[, start]]]]]]])
          ǯդ֥Ȥޤ

  ᥽å

   hour
          ֤֤ޤ (0-23)

   min
          ʬ֤ޤ (0-59)

   new_offset([offset])
          self ʣơλꤷʤޤ ά
          ϡ () ˤʤޤ

          new ⻲ȤƤ

   offset
          ֤ޤ

   sec
          ä֤ޤ (0-59)

   zone
          ॾ֤ޤ

                          date/holiday - ˺Ƚ

Date

  饹᥽å

   gregorian_easter(year[, start])
   easter(year[, start])
          쥴ꥪˤ롢ǯפ֤ޤ

   julian_easter(year[, start])
          ꥦˤ롢ǯפ֤ޤ

   nth_kday(n, k, year, mon[, start])
          ηNK N (-5  5ϤΤ)  K
          (0-6) ֤ޤ

  ᥽å

   easter?
          פǤп֤ޤ

   national_holiday?
          ֹ̱ν˴ؤˡΧפˤ ⤷ϡĤ
          ʵǤп֤ޤ

          Υ᥽åɤϡ輷 ֹ̱ν˴ؤˡΧڤϷʡ
          ˡΰˡΧ (ʿ13ǯ622泰ˡΧ59)б
          ߤǤ

          ʬʬǯ2Ϥδ˷ǺܤΤ
          Ǥ ǤϷ׻ǵƤޤ Ĥޤ꾭ˤĤƤϴְ
          뤳Ȥ⤢뤫⤷ޤ ʤʿ16ǯ (2004) ʬޤǤϴ
          ˤǧѤߤǤ

   nth_kday?(n, k)
          ηNKN (-5  5ϤΤ)  K
          (0-6) Ǥп֤ޤ

   old_national_holiday?
          ѽ˺Ǥä֤ޤ ̤Ūʪͭޤ

                         parsedate - դȻβ

ParseDate

  ⥸塼ؿ

   parsedate(str[, complete])
          Ϳ줿ɽϤǤ  (ǯ
          ʬáॾ) ֤ޤ

          άǤǸΰǡǯ099ϰϤǤС ǯβ2
          ɽǤȤߤʤ䤤ޤ ʤάϡ
          ߤʤޤ

          parsedate Ϥʽ񼰤򤢤Ĥޤ ȤСĤΤ褦
          ɽĤޤ:

Sat
Saturday
1999-08-28
21:45:09
09:45:09 PM
1999-08-28T21:45:09+0900
19990828 214509
H11.08.28T21:45:09Z
Sat Aug 28 21:45:09 1999
Sat Aug 28 21:45:09 JST 1999
Sat, 28 Aug 1999 21:45:09 -0400
Saturday, 28-Aug-99 21:45:09 GMT
08/28/1999
1999/08/28

          Date::parse ⻲ȤƤ
