225 lines
8.1 KiB
Plaintext
225 lines
8.1 KiB
Plaintext
# @(#)europe 4.10
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# International country codes are used to identify countries' rules and
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# zones
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#
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# This data is by no means authoritative; if you think you know better, go
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# ahead and edit the file (and please send any changes to
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# ado@ncifcrf.gov for general use in the future).
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###############################################################################
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# United Kingdom
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# From Arthur David Olson (January 19, 1989):
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#
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# The starting and ending dates below (from which the rules are derived)
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# are from Whitaker's Almanack for 1987, page 146.
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# 1960 is the earliest year for which dates are given;
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# Whitaker's notes that British Summer Time (and, in some years, Double Summer
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# Time) was observed in earlier years but does not give start and end dates.
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#
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# A source at the British Information Office in New York avers that it's
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# known as "British" Summer Time in all parts of the United Kingdom.
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# 1960 April 10 October 2 (yes, 2, according to the almanac)
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# 1961 March 26 October 29
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# 1962 March 25 October 28
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# 1963 March 31 October 27
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# 1964 March 22 October 25
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# 1965 March 21 October 24
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# 1966 March 20 October 23
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# 1967 March 19 October 29
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# 1968 February 18 October 27
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# "British Standard Time, also one hour ahead of G. M. T., was kept between
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# 1968 Oct. 27-1971 Oct. 31."
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# 1972 March 19 October 29
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# 1973 March 18 October 28
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# 1974 March 17 October 27
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# 1975 March 16 October 26
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# 1976 March 21 October 24
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# 1977 March 20 October 23
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# 1978 March 19 October 29
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# 1979 March 18 October 28
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# 1980 March 16 October 26
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# 1981 March 29 October 25
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# 1982 March 28 October 24
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# 1983 March 27 October 23
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# 1984 March 25 October 28
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# 1985 March 31 October 27
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# 1986 March 30 October 26
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# 1987 March 29 October 25
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# From an Anonymous U. K. Donor (January 4, 1989):
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#
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# It is NOT possible to predict when [British Summer Time] will change
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# in a future year.
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#
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# (The admiralty calculate when they think it should be (no more that a couple
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# of years in advance) and advise the government who then decide whether or
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# not they will take the admiralty's advice)
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#
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# ...the Gre[e]nwich...observatory...[was] very helpful.
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#
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# I was not able to track down the Admiralty formula (I tried hard but failed)
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# ...
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# Date: 4 Jan 89 08:57:25 GMT (Wed)
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# From: Jonathan Leffler <nih-csl!uunet!mcvax!sphinx.co.uk!john>
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# ...
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# [British Summer Time] is fixed annually by Act of Parliament.
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# If you can predict what Parliament will do, you should be in
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# politics making a fortune, not computing.
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#
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# Summer time ends on Sunday 29 October 1989.
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# ...
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# Date: 5 Jan 89 09:50:38 GMT (Thu)
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# From: Peter Kendell <nih-csl!uunet!mcvax!tcom.stc.co.uk!pete>
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# ...
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#
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# From my Collins Diary for 1989 -
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#
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# "At the time of going to press the Home Office was unable to confirm
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# the 1989 starting and finishing dates for BST*, but expressed the
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# view that 26 March and 29 October were the likeliest dates to be
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# adopted"
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#
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# *British Summer Time.
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# From an Anonymous U. K. Donor (January 5, 1989):
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#
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# . . .our government is seriously considering applying Double Summer Time -
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# putting the clocks forwards and back TWO hours for daylight saving time.
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# This is advocated to standardise time in the EEC - we're all supposed to
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# keep the same time and to change the clocks on the same dates in the future.
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# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
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# Historic starting rules
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Rule GB-Eire 1960 only - Apr 10 1:00s 1:00 BST
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Rule GB-Eire 1961 1963 - Mar lastSun 1:00s 1:00 BST
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Rule GB-Eire 1964 1967 - Mar Sun>=19 1:00s 1:00 BST
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Rule GB-Eire 1968 only - Feb 18 1:00s 1:00 BST
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Rule GB-Eire 1972 1980 - Mar Sun>=16 1:00s 1:00 BST
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# Historic ending rules
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Rule GB-Eire 1960 only - Oct 2 1:00s 0 GMT
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Rule GB-Eire 1961 1967 - Oct Sun>=23 1:00s 0 GMT
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Rule GB-Eire 1971 only - Oct 31 1:00s 0 GMT
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# Current rules
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Rule GB-Eire 1981 max - Mar lastSun 1:00s 1:00 BST
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Rule GB-Eire 1972 max - Oct Sun>=23 1:00s 0 GMT
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# Zone NAME GMTOFF RULES/SAVE FORMAT [UNTIL]
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Zone GB-Eire 0:00 GB-Eire %s 1968 Oct 27 1:00s
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1:00 - BST 1971 Oct 31 1:00s
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0:00 GB-Eire %s
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###############################################################################
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# Continental Europe
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# The use of 1986 as starting years below is conservative.
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Rule W-Eur 1986 max - Mar lastSun 1:00s 1:00 " DST"
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Rule W-Eur 1986 max - Sep lastSun 1:00s 0 -
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Rule M-Eur 1986 max - Mar lastSun 2:00s 1:00 " DST"
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Rule M-Eur 1986 max - Sep lastSun 2:00s 0 -
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Rule E-Eur 1986 max - Mar lastSun 3:00s 1:00 " DST"
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Rule E-Eur 1986 max - Sep lastSun 3:00s 0 -
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Rule Turkey 1986 max - Mar lastSun 1:00 1:00 " DST"
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Rule Turkey 1986 max - Sep lastSun 1:00 0 -
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Rule W-SU 1986 max - Mar lastSun 2:00s 1:00 " DST"
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Rule W-SU 1986 max - Sep lastSun 2:00s 0 -
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# Zone NAME GMTOFF RULES/SAVE FORMAT [UNTIL]
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Zone WET 0:00 W-Eur WET%s
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Zone Iceland 0:00 - WET
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Zone MET 1:00 M-Eur MET%s
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Zone Poland 1:00 W-Eur MET%s
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Zone EET 2:00 E-Eur EET%s
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Zone Turkey 3:00 Turkey EET%s
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Zone W-SU 3:00 M-Eur ????
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# Tom Hoffman says that MET is also known as Central European Time
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Link MET CET
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###############################################################################
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# One source shows that Bulgaria, Cyprus, Finland, and Greece observe DST from
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# the last Sunday in March to the last Sunday in September in 1986.
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# The source shows Romania changing a day later than everybody else.
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#
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# According to Bernard Sieloff's source, Poland is in the MET time zone but
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# uses the WE DST rules. The Western USSR uses EET+1 and ME DST rules.
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# Bernard Sieloff's source claims Romania switches on the same day, but at
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# 00:00 standard time (i.e., 01:00 DST). It also claims that Turkey
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# switches on the same day, but switches on at 01:00 standard time
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# and off at 00:00 standard time (i.e., 01:00 DST)
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# ...
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# Date: Wed, 28 Jan 87 16:56:27 -0100
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# From: seismo!mcvax!cgcha!wtho (Tom Hofmann)
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# Message-Id: <8701281556.AA22174@cgcha.uucp>
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# ...
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#
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# ...the European time rules are...standardized since 1981, when
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# most European coun[tr]ies started DST. Before that year, only
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# a few countries (UK, France, Italy) had DST, each according
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# to own national rules. In 1981, however, DST started on
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# 'Apr firstSun', and not on 'Mar lastSun' as in the following
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# years...
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# But also since 1981 there are some more national exceptions
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# than listed in 'europe': Switzerland, for example, joined DST
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# one year later, Denmark ended DST on 'Oct 1' instead of 'Sep
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# lastSun' in 1981---I don't know how they handle now.
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#
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# Finally, DST ist always from 'Apr 1' to 'Oct 1' in the
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# Soviet Union (as far as I know).
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#
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# Tom Hofmann, Scientific Computer Center, CIBA-GEIGY AG,
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# 4002 Basle, Switzerland
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# UUCP: ...!mcvax!cernvax!cgcha!wtho
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# ...
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# Date: Wed, 4 Feb 87 22:35:22 +0100
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# From: seismo!mcvax!cwi.nl!dik (Dik T. Winter)
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# ...
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#
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# The information from Tom Hofmann is (as far as I know) not entirely correct.
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# After a request from chongo at amdahl I tried to retrieve all information
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# about DST in Europe. I was able to find all from about 1969.
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#
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# ...standardization on DST in Europe started in about 1977 with switches on
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# first Sunday in April and last Sunday in September...
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# In 1981 UK joined Europe insofar that
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# the starting day for both shifted to last Sunday in March. And from 1982
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# the whole of Europe used DST, with switch dates April 1 and October 1 in
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# the Sov[i]et Union. In 1985 the SU reverted to standard Europe[a]n switch
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# dates...
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#
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# It should also be remembered that time-zones are not constants; e.g.
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# Portugal switched in 1976 from MET (or CET) to WET with DST...
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# Note also that though there were rules for switch dates not
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# all countries abided to these dates, and many individual deviations
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# occurred, though not since 1982 I believe. Another note: it is always
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# assumed that DST is 1 hour ahead of normal time, this need not be the
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# case; at least in the Netherlands there have been times when DST was 2 hours
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# in advance of normal time.
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#
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# ...
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# dik t. winter, cwi, amsterdam, nederland
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# INTERNET : dik@cwi.nl
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# BITNET/EARN: dik@mcvax
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# From Bob Devine (January 28, 1988):
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# ...
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# Greece: Last Sunday in April to last Sunday in September (iffy on dates).
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# Since 1978. Change at midnight.
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# ...
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# Monaco: has same DST as France.
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# ...
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