[Remind-Fans] Re: Sunrise, Sunset (Swiftly Flow the Days) ...

[Greg Schneider]

Mike,
I, too, am having the same problem.  I haven't tried David Rogers's
suggestion, but I just wanted to let you know you're not alone.
G

On 5/2/05, David Rogers <davidrogers at telus.net> wrote:
> Mike Harris wrote:
> 
> >(5/2/05 9:03 AM) David F. Skoll <dfs at roaringpenguin.com> wrote:
> >
> >> I'm not sure how Mac OS X handles it, but Linux and most UNIXes keep
> >> system time in UTC and their C libraries do on-the-fly conversions,
> >> taking into account DST.
> >
> >Well, 'date' yields 'Mon May  2 21:44:09 CDT 2005' -- but the more
> >simplistic version of the code yielded the very same problem of it
> >being an hour ahead.  I imagine it may be something individual to my
> >system.  Are there any other Mac OS X users on this list experiencing
> >the same problem?
> >
> >Perhaps I can attack this from a different angle.  The sole inaccuracy
> >is the hour's difference.  Can I manually subtract one hour from the
> >result, code I could later eliminate when we go back on 'normal' time?
> 
> I ran into this problem on OS X, and copied the following (with my own
> modifications) to the beginning of my .reminders file, from one of the
> example files that comes with Remind. The "-420" value in the first line
> is what you would change to suit your own distance from UTC. -420 seems
> to work for me on the Canadian west coast. I hope I've used the example
> correctly, and I hope it works!
> 
> #__________________________
> 
> SET TimeZone -420
> 
>     # Use --8 rather than --7 because we want the last day BEFORE
>     # the time switch occurs.
>     REM Sun 1 May --8 SATISFY 1
>     SET BegDst TRIGDATE()
> 
>     REM Sun 1 Nov --8 SATISFY 1
>     SET EndDst TRIGDATE()
> 
>     SET $CalcUTC 0
> 
>     # Check out the following IF statement and figure out why it works!
>     IF EndDst < BegDst
>         # Daylight Savings Time
>         SET $MinsFromUTC TimeZone+60
>     ELSE
>         # Standard Time
>         SET $MinsFromUTC TimeZone
>     ENDIF
> #__________________________
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