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Eggert deltas based on Shanks work

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SCCS-file: europe
SCCS-SID: 7.6
This commit is contained in:
Arthur David Olson
1993-10-15 12:25:52 -04:00
committed by Paul Eggert
parent 4ee2dfadaf
commit e8ac2919ea
1 changed files with 31 additions and 6 deletions
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europe
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@ -7,6 +7,10 @@
# ahead and edit the file (and please send any changes to
# ado@ncifcrf.gov for general use in the future).
# A good source for time zone historical data outside the U.S. is
# Thomas G. Shanks, The International Atlas (3rd edition),
# San Diego: ACS Publications, Inc. (1991).
###############################################################################
# United Kingdom
@ -52,7 +56,7 @@
# 1921 3 April 3 October
# 1922 26 March 8 October
# 1923 22 April 16 September
# 1924 30 April 21 September
# 1924 13 April 21 September
# 1925 to 3rd Sunday 1st Sunday
# 1938 in April in October
#
@ -120,6 +124,16 @@
#
# These dates agree with the ones from Whitaker's Almanac for 1960--87. . .
# From Paul Eggert (October 14, 1993)
#
# I changed the date `30 April 1924' to `13 April 1924' in the above table
# to fix what must be transcription error, since 30 April is not a Sunday,
# and Shanks gives 13 April which is a Sunday.
#
# The rules for Eire below are taken from Shanks, and reflect his claim that
# Eire changed the clock twice on 1 Oct 1916. I invented `IST' and `IDT' as
# abbreviations for Eire's standard and daylight time before 1 Oct 1916.
# From Arthur David Olson (January 19, 1989):
#
# A source at the British Information Office in New York avers that it's
@ -210,7 +224,7 @@
# Rule NAME FROM TO TYPE IN ON AT SAVE LETTER/S
# 1916 to 1925--irregular
Rule GB-Eire 1916 only - Mar 21 2:00s 1:00 BST
Rule GB-Eire 1916 only - May 21 2:00s 1:00 BST
Rule GB-Eire 1916 only - Oct 1 2:00s 0 GMT
Rule GB-Eire 1917 only - Apr 8 2:00s 1:00 BST
Rule GB-Eire 1917 only - Sep 17 2:00s 0 GMT
@ -225,8 +239,8 @@ Rule GB-Eire 1921 only - Oct 3 2:00s 0 GMT
Rule GB-Eire 1922 only - Mar 26 2:00s 1:00 BST
Rule GB-Eire 1922 only - Oct 8 2:00s 0 GMT
Rule GB-Eire 1923 only - Apr 22 2:00s 1:00 BST
Rule GB-Eire 1923 only - Oct 16 2:00s 0 GMT
Rule GB-Eire 1924 only - Apr 30 2:00s 1:00 BST
Rule GB-Eire 1923 only - Sep 16 2:00s 0 GMT
Rule GB-Eire 1924 only - Apr 13 2:00s 1:00 BST
Rule GB-Eire 1924 only - Sep 21 2:00s 0 GMT
# 1925 to 1939 start--regular
Rule GB-Eire 1925 1939 - Apr Sun>=15 2:00s 1:00 BST
@ -266,7 +280,6 @@ Rule GB-Eire 1955 1959 - Apr Sun>=14 2:00s 1:00 BST
Rule GB-Eire 1960 only - Apr 10 2:00s 1:00 BST
Rule GB-Eire 1961 1963 - Mar lastSun 2:00s 1:00 BST
Rule GB-Eire 1964 1967 - Mar Sun>=19 2:00s 1:00 BST
Rule GB-Eire 1968 only - Feb 18 2:00s 1:00 BST
Rule GB-Eire 1972 1980 - Mar Sun>=16 2:00s 1:00 BST
# 1953 to 1980, ending rules
Rule GB-Eire 1953 1960 - Oct Sun>=1 2:00s 0 GMT
@ -278,7 +291,19 @@ Rule GB-Eire 1981 max - Mar lastSun 1:00s 1:00 BST
Rule GB-Eire 1981 max - Oct Sun>=23 1:00s 0 GMT
# Zone NAME GMTOFF RULES/SAVE FORMAT [UNTIL]
Zone GB-Eire 0:00 GB-Eire %s 1968 Oct 27 2:00s
Zone GB 0:00 - GMT 1916 May 21 2:00s
0:00 GB-Eire %s 1968 Feb 18 2:00s
1:00 - BST 1971 Oct 31 2:00s
0:00 GB-Eire %s
Zone Eire -0:25 - IST 1916 May 21 2:00
-0:25 1:00 IDT 1916 Oct 1 2:00
0:00 1:00 BST 1916 Oct 1 3:00
0:00 GB-Eire %s 1940 Feb 25 2:00
0:00 1:00 BST 1946 Oct 6 2:00
0:00 - GMT 1947 Mar 16 2:00
0:00 1:00 BST 1947 Nov 2 2:00
0:00 - GMT 1948 Apr 18 2:00
0:00 GB-Eire %s 1968 Feb 18 2:00s
1:00 - BST 1971 Oct 31 2:00s
0:00 GB-Eire %s