Subject: Re: double summertime :-(
To: David Laight <david@l8s.co.uk>
From: Steven M. Bellovin <smb@research.att.com>
List: port-i386
Date: 04/24/2002 13:16:31
In message <20020424185235.J1312@snowdrop.l8s.co.uk>, David Laight writes:

>> 
>> The fix is:
>> 
>> options     RTC_OFFSET=0    # hardware clock is this many mins. west of GMT
>
>No it isn't!
>That is already set.
>Changing RTC_OFFSET would require a summer kernel and a winter kernel!
>But I suspect that everytime I load win98 it will advance the clock
>another hour!
>
>Actually I think the RTC isn't set until after some filestore has been found
>(there is a sanity check ensuring that the time hasn't moved by more than
>5 years) so maybe the offset could be in filestore?

I run Windows rarely, and never for anything serious.  What I do is to 
set my Windows timezone to GMT, and uncheck the box that says 
"automatically adjust for Daylight Savings Time".  I run NetBSD with 
RTC_OFFSET at 0, and with the appropriate /etc/localtime.

In other words, when I'm in Windows my clock appears to be 4 or 5 hours 
fast, but it doesn't matter to me, and it means that NetBSD doesn't 
have to cope.

		--Steve Bellovin, http://www.research.att.com/~smb
		Full text of "Firewalls" book now at http://www.wilyhacker.com