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Re: Solaris 2.7 Daylight saving time fix

Subject: Re: Solaris 2.7 Daylight saving time fix
Date: Wed, 31 Jan 2007 17:37:12 +0100

The specification that I can find (SUS3 at Open Group) leaves it 
completely unspecified what rules might apply to the switch between winter 
and summer (or standard and daylight saving) times.  It shows how to set 
the rule by including the information in the TZ variable, but it does not 
state what the rule is in the absence of a specific setting.

I misremembered this.  But remember that in the old zoneinfo files
GMT+/-xx was defined backward and using such timezones would result
in non-POSIX compliant timestamps.  (GMT+5 was interpreted as POSIX GMT-5
and vice versa)

It appears we stopped shipping those in Solaris 2.4 so I guess it's about time
that we removed the hardcoded defaults from libc and rely on the rule
files from now on.

(And make it so that changes to the rule files do not require a reboot)

Casper

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