Date: Mon, 27 Apr 1998 00:51:54 +0200 (MET DST) From: Wolfgang Helbig <helbig@Informatik.BA-Stuttgart.DE> To: kpielorz@tdx.co.uk (Karl Pielorz) Cc: freebsd-bugs@FreeBSD.ORG Subject: Re: Year 2000 Compliance - localtime? Message-ID: <199804262251.AAA00669@rvc1.informatik.ba-stuttgart.de> In-Reply-To: <354315FC.7532C42D@tdx.co.uk> from Karl Pielorz at "Apr 26, 98 12:09:48 pm"
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> I'm writing a program at the moment that does some date manipulation...
> Is this right? - or are there some better functions or something I should be
> using?
The calendar library (man 3 calendar) might be helpful.
The core of this library are conversion routines for two representation
of dates:
-- month day year
-- number of days since Jan 1, 1 BC. (That is the year before the year one,
called ``year 0'' by astronomers and 1 BC by historians).
These conversion routines can be exploited to easily code all kinds of
date arithmetic. The command ncal(1) relies on them.
Wolfgang
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