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Date: Thu, 9 Oct 2008 23:24:24 +1100 (EST)
From: Ian Smith <smithi@nimnet.asn.au>
To: Andrew D <andrewd@webzone.net.au>
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Cc: 'FreeBSD Stable' <freebsd-stable@freebsd.org>
Subject: Re: sidetrack [was Re: 'at now' not working as expected]
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On Thu, 9 Oct 2008, Andrew D wrote:
 > Ian Smith wrote:
 > > On Wed, 8 Oct 2008, Peter Wemm wrote:
 > > [..]
 > >  > My tolerance for hacking at(1) code was exceeded when I added hacks
 > >  > for 'at sunrise' and 'at sunset' support to a local version.  It
 > >  > wasn't pretty, especially when handling things like '30 minutes before
 > >  > sunrise' etc.  (I use this for home automation stuff)
 > > 
 > > Peter, just curious .. from where do you pull the current sunrise/sunset
 > > info for your location, and in what form?
 >
 > In Australia, you get it from Geoscience Australia.
 > 
 > http://www.ga.gov.au/geodesy/astro/sunrise.jsp
 > 
 > Just need a few curl queries and then extract the required info from the html
 > source :)
 > 
 > HTH

Sure does, thanks Andrew.  Saved as text, very amenable to a bit of grep 
'n awking.  Took transit times too, useful for calibrating solar clocks.

cheers, Ian