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From: ewoods@hemel.bull.co.uk (Eoin Woods)
Newsgroups: comp.unix.questions
Subject: Re: need "yy-ddd-hh:mm:ss ==> (time_t) clock" converter
Message-ID: <1991Jan25.081618.19366@hemel.bull.co.uk>
Date: 25 Jan 91 08:16:18 GMT
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lgdelta!email!tachost!BRL.MIL!Info-Unix-Request@tachost.af.mil (The Moderator) writes:

>Help!  I need something to convert yy-ddd-hh:mm:ss (i.e. year,
>day_of_year, hour, minute, second) to a unix-style
>_number_of_seconds_since_00:00:00_GMT,_Jan._1,_1970_.

Take a look at the book 

	"Advanced UNIX Programming" by Marc Rochkind
	(Prentice Hall, 1985, ISBN 0-13-011818-[41])

He discusses UNIX's handling of dates and times in section 3.4 and presents
a function timecvt() that takes a string of the form YYMMDDhhmmss and converts
it to "seconds since the epoch" form (page 50-52). (Its a generally "classic"
book anyway!)

Eoin.
--
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