2.11BSD/src/share/zoneinfo/europe
# @(#)europe 3.1
# Europe, updated from 4.3BSD and various contributors
# International country codes are used to identify countries' rules and
# zones
#
# This data is by no means authoritative; if you think you know better, go
# ahead and edit the file (and please send any changes to seismo!elsie!tz
# for general use in the future). The use of 1986 as starting years below
# is conservative.
#
# One source shows that Bulgaria, Cyprus, Finland, and Greece observe DST from
# the last Sunday in March to the last Sunday in September in 1986.
# The source shows Romania changing a day later than everybody else.
#
# According to Bernard Sieloff's source, Poland is in the MET time zone but
# uses the WE DST rules. The Western USSR uses EET+1 and ME DST rules.
# Bernard Sieloff's source claims Romania switches on the same day, but at
# 00:00 standard time (i.e., 01:00 DST). It also claims that Turkey
# switches on the same day, but switches on at 01:00 standard time
# and off at 00:00 standard time (i.e., 01:00 DST)
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
Rule GB-Eire 1986 max - Mar lastSun 1:00s 1:00 BST
Rule GB-Eire 1986 max - Oct lastSun 1:00s 0 GMT
Rule W-Eur 1986 max - Mar lastSun 1:00s 1:00 " DST"
Rule W-Eur 1986 max - Sep lastSun 1:00s 0 -
Rule M-Eur 1986 max - Mar lastSun 2:00s 1:00 " DST"
Rule M-Eur 1986 max - Sep lastSun 2:00s 0 -
Rule E-Eur 1986 max - Mar lastSun 3:00s 1:00 " DST"
Rule E-Eur 1986 max - Sep lastSun 3:00s 0 -
Rule Turkey 1986 max - Mar lastSun 1:00 1:00 " DST"
Rule Turkey 1986 max - Sep lastSun 1:00 0 -
Rule W-SU 1986 max - Mar lastSun 2:00s 1:00 " DST"
Rule W-SU 1986 max - Sep lastSun 2:00s 0 -
# Zone NAME GMTOFF RULES/SAVE FORMAT [UNTIL]
Zone GB-Eire 0:00 GB-Eire %s
Zone WET 0:00 W-Eur WET%s
Zone Iceland 0:00 - WET
Zone MET 1:00 M-Eur MET%s
Zone Poland 1:00 W-Eur MET%s
Zone EET 2:00 E-Eur EET%s
Zone Turkey 3:00 Turkey EET%s
Zone W-SU 3:00 M-Eur ????
# Tom Hoffman says that MET is also known as Central European Time
Link MET CET
#
# And now, letters on the subject. . .
#
###############################################################################
#
# ...
# Date: Wed, 28 Jan 87 16:56:27 -0100
# From: seismo!mcvax!cgcha!wtho (Tom Hofmann)
# Message-Id: <8701281556.AA22174@cgcha.uucp>
# ...
# Subject: Time zone handling
# ...
#
# ...the European time rules are...standardized since 1981, when
# most European counrties started DST. Before that year, only
# a few countries (UK, France, Italy) had DST, each according
# to own national rules. In 1981, however, DST started on
# 'Apr firstSun', and not on 'Mar lastSun' as in the following
# years...
# But also since 1981 there are some more national exceptions
# than listed in 'europe': Switzerland, for example, joined DST
# one year later, Denmark ended DST on 'Oct 1' instead of 'Sep
# lastSun' in 1981---I don't know how they handle now.
#
# Finally, DST ist always from 'Apr 1' to 'Oct 1' in the
# Soviet Union (as far as I know).
#
# Tom Hofmann, Scientific Computer Center, CIBA-GEIGY AG,
# 4002 Basle, Switzerland
# UUCP: ...!mcvax!cernvax!cgcha!wtho
#
###############################################################################
#
# ...
# Date: Wed, 4 Feb 87 22:35:22 +0100
# From: seismo!mcvax!cwi.nl!dik (Dik T. Winter)
# Message-Id: <8702042135.AA23919@zuring.cwi.nl>
# ...
# Subject: timezones
# ...
#
# The information from Tom Hofmann is (as far as I know) not entirely correct.
# After a request from chongo at amdahl I tried to retrieve all information
# about DST in Europe. I was able to find all from about 1969.
#
# ...standardization
# on DST in Europe started in about 1977 with switches on first Sunday in
# April and last Sunday in September. In UK it was from last but 1 Sunday
# in march to last Sunday in October. In 1981 UK joined Europe insofar that
# the starting day for both shifted to last Sunday in March. And from 1982
# the whole of Europe used DST, with switch dates April 1 and October 1 in
# the Sovjet Union. In 1985 the SU reverted to standard Europen switch
# dates. Note that currently in the UK the switch back date appears not
# to be the last Sunday in October, but 4 weeks after the last Sunday in
# September (withness 1982 and 1983 with terminating days October 24 and 23).
#
# It should also be remembered that time-zones are not constants; e.g.
# Portugal switched in 1976 from MET (or CET) to WET with DST, and the UK
# used MET throughout from 1967 to 1969, and WET with DST before and after
# that time. Note also that though there were rules for switch dates not
# all countries abided to these dates, and many individual deviations
# occurred, though not since 1982 I believe. Another note: it is always
# assumed that DST is 1 hour ahead of normal time, this need not be the
# case; at least in the Netherlands there have been times when DST was 2 hours
# in advance of normal time.
#
# ...
# dik t. winter, cwi, amsterdam, nederland
# INTERNET : dik@cwi.nl
# BITNET/EARN: dik@mcvax