From owner-freebsd-questions  Fri Jun 19 10:27:38 1998
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	Sat, 20 Jun 1998 03:26:57 +1000
Date: Sat, 20 Jun 1998 03:26:57 +1000
From: Bruce Evans <bde@zeta.org.au>
Message-Id: <199806191726.DAA29339@godzilla.zeta.org.au>
To: andy@tridentgroup.co.uk, questions@FreeBSD.ORG
Subject: Re: Millennium compliance
Cc: freebsd-bugs@FreeBSD.ORG
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>I have a couple of questions regarding Millennium compliance:
>
>Firstly, does FreeBSD interrogate the RTC chip directly for the
>time/date information or the system BIOS instead? This is important

It reads the RTC, ignores the century register, and converts year 00 to
2000.  Except when configured with the non-default option USE_RTC_CENTURY,
it believes the century register and converts (year 00, century 19)
to year 1900.

>The second question I have is what will happen to FreeBSD if the
>computer BIOS is not millennium compliant when the century changes? 

FreeBSD doesn't change the century register unless it is configured
with option USE_RTC_CENTURY, so the century register won't change
while FreeBSD is running unless the hardware changes it.

Bruce

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