[comp.sys.hp] /usr/lib/tztab wrong for UK sites - here's the fix

rkl@and.cs.liv.ac.uk (03/25/91)

I get in this morning (Monday 25th March) and find that all our HP9000
machines (running HP-UX 7.0) are an hour out :-(

It's because BST begins on 31st March, but /usr/lib/tztab was configured
for the week before :-( Here's the fix for those hundreds of UK sites
still scratching their heads...

# Greenwich Mean Time, British Summer Time, BST-1 hacked by RKL for 1991
GMT0BST
0 3 25-31 3  1983-1984 0   BST-1
0 3 23-29 3  1985-1990 0   BST-1
0 3 25-31 3  1991      0   BST-1
0 3 23-29 3  1992-2038 0   BST-1
0 1 25-31 10 1983-1985 0   GMT0
0 1 23-29 10 1986-2038 0   GMT0

P.S. There is *NO* formula for this, it's decided by an Act of Parliament.
     Hence, there's no guarantee that 1992 onwards isn't wrong as well :-(
     (BST ends on 27th October 1991, BTW).

Richard K. Lloyd,       **** This is a MicroVAX II running VAX/VMS V5.4 ****
Computer Science Dept.,   JANET     : rkl@uk.ac.liv.cs.and
Liverpool University,     Internet  : rkl%and.cs.liv.ac.uk@nsfnet-relay.ac.uk
Merseyside, England,      UUCP      : ..!mcsun!ukc!liv-cs!rkl
Great Britain.          Q: "What's the world's fastest home micro ?"
L69 3BX                 A: "The Archimedes A3000. 4 MIPS for under 800 pounds."