仕様書

RFC 561 BNF

[3]

           <dateitem>    ::= DATE: <SP> <date> <SP> <time> - <zone>  
           <date>        ::= <vdate> ! <tdate>                       
           <vdate>       ::= <dayofmonth> <SP> <vmonth> <SP> <vyear>
           <tdate>       ::= <tmonth> / <dayofmonth> / <tyear>      
           <dayofmonth>  ::= one or two decimal digits              
           <vmonth>      ::= JAN ! FEB ! MAR ! APR ! MAY ! JUN !
                             JUL ! AUG ! SEP ! OCT ! NOV ! DEC      
           <tmonth>      ::= one or two decimal digits              
           <vyear>       ::= four decimal digits                    
           <tyear>       ::= two decimal digits                     
           <zone>        ::= EST ! EDT ! CST ! CDT ! MST ! MDT !
                             PST ! PDT ! GMT ! GDT                  
           <time>        ::= four decimal digits                    
>
           (4) The time has no internal punctuation.                

RFC 680

[5] RFC 680 - Message Transmission Protocol, 2021-01-31T19:20:31.000Z, 2021-03-10T05:59:48.108Z https://tools.ietf.org/html/rfc680

説明

[4] RFC 724の日付形式と似ています。大文字・小文字の区別はありません。

例

• [1] 24 JUL 1973 1527-PDT

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