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Article #91

Re: New date format (year) ?

#91
From: Erik Naggum
Date: Thu, 20 Aug 1992 19:27
46 lines
2060 bytes
jpaul@gwx400A.bull.fr writes:
|
|
|   I have seen that on sendmail 5.65 it seems that the year in the date
|   field is writen with 4 digits :
|
|   ex :
|   in 5.61 :
|   Tue, 18 Aug 92 12:08:02 +0200
|
|   in 5.65 :
|   Tue, 18 Aug 1992 12:08:02 +0200
|
|   I presume this is not a hazard : year 2000 is comming and it is probably
|   the reason of that change.

Actually, RFC 822 changed the allowed 4-digit year specication of RFC
733 into a required 2-digit year specification.  This was of course
needlessly short-sighted, and the problem was fixed in RFC 1123, which
says, in section 5.2.14:

         All mail software SHOULD use 4-digit years in dates, to ease
         the transition to the next century.

|   But this causes me a problem on a gateway which is not able to manage
|   that format. And I would like to know if there an RFC or some think
|   concerning this before submitting the problem to the gateway's
|   programmer.

RFC 1123 should be all you need.  The gateway programmer should be shot
for being so foolish as to not accept four-digit years to begin with.
The same applies to automatic date conversion utilities which don't
understand date specifications like

	Thursday, 20 August 1992

which some BITNET sites are wont to send out (clue: ignore the rest of
the word after you've recognized the three first letters).

Best regards,
</Erik>
--
Erik Naggum             |  ISO  8879 SGML     |      +47 295 0313
                        |  ISO 10744 HyTime   |
<erik@naggum.no>        |  ISO 10646 UCS      |      Memento, terrigena.
<enag@ifi.uio.no>       |  ISO  9899 C        |      Memento, vita brevis.
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Message-ID: <23312C@erik.naggum.no>
Path: arc1-ca.pugleaf.net!sparky!uunet!pipex!unipalm!uknet!mcsun!sunic!aun.uninett.no!nuug!ifi.uio.no!enag
References: <129@bull.bull.fr>

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Path: arc1-ca.pugleaf.net!sparky!uunet!pipex!unipalm!uknet!mcsun!sunic!aun.uninett.no!nuug!ifi.uio.no!enag
From: enag@ifi.uio.no (Erik Naggum)
Newsgroups: comp.mail.headers
Subject: Re: New date format (year) ?
Message-ID: <23312C@erik.naggum.no>
Date: 20 Aug 92 19:27:06 GMT
References: <129@bull.bull.fr>
Organization: Department of Informatics, University of Oslo, Norway
Lines: 41