Subject: Re: TIMEZONE and DST - obsolete?
To: None <pk@cs.few.eur.nl, plunky@skate.demon.co.uk>
From: Charles M. Hannum <mycroft@NetBSD.ORG>
List: current-users
Date: 03/03/1996 01:54:04 
   It is obsolete. All userland utilities should use `/etc/localtime' (see
   ctime(3) et.al.).

It is not entirely obsolete.  Some OSes (e.g. MSDOS) expect the RTC to
be kept at an offset from GMT.