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-rw-r--r--timezone/antarctica21
1 files changed, 16 insertions, 5 deletions
diff --git a/timezone/antarctica b/timezone/antarctica
index c98e528c1e..6f87e9f7d5 100644
--- a/timezone/antarctica
+++ b/timezone/antarctica
@@ -1,4 +1,4 @@
-# @(#)antarctica 7.21
+# @(#)antarctica 7.22
# From Paul Eggert (1999-11-15):
# To keep things manageable, we list only locations occupied year-round; see
@@ -39,8 +39,8 @@ Rule ArgAQ 1974 only - Jan 23 0:00 1:00 S
Rule ArgAQ 1974 only - May 1 0:00 0 -
Rule ArgAQ 1974 1976 - Oct Sun<=7 0:00 1:00 S
Rule ArgAQ 1975 1977 - Apr Sun<=7 0:00 0 -
-Rule ChileAQ 1969 1997 - Oct Sun>=9 0:00 1:00 S
-Rule ChileAQ 1970 1998 - Mar Sun>=9 0:00 0 -
+Rule ChileAQ 1966 1997 - Oct Sun>=9 0:00 1:00 S
+Rule ChileAQ 1967 1998 - Mar Sun>=9 0:00 0 -
Rule ChileAQ 1998 only - Sep 27 0:00 1:00 S
Rule ChileAQ 1999 only - Apr 4 0:00 0 -
Rule ChileAQ 1999 max - Oct Sun>=9 0:00 1:00 S
@@ -92,11 +92,13 @@ Zone Antarctica/Mawson 0 - zzz 1954 Feb 13
# Brazil - year-round base
# Ferraz, King George Island, since 1983/4
-# Chile - year-round bases
+# Chile - year-round bases and towns
# Escudero, South Shetland Is, -621157-0585735, since 1994
-# Frei, King George Is, -6214-05848, since 1969
+# Frei, King George Island, -6214-05848, since 1969-03-07
# O'Higgins, Antarctic Peninsula, -6319-05704, since 1948-02
# Prat, -6230-05941
+# Villa Las Estrellas (a town), King George Island, since 1984-04-09
+# These locations have always used Santiago time; use TZ='America/Santiago'.
# China - year-round bases
# Great Wall, King George Island, since 1985-02-20
@@ -219,6 +221,15 @@ Rule NZAQ 1990 max - Mar Sun>=15 2:00s 0 S
# of GMT). This is a time zone I think two hours east of Moscow. The
# natural time zone is in between the two: 8 hours ahead of GMT.''
#
+# From Paul Eggert (2001-05-04):
+# This seems to be hopelessly confusing, so I asked Lee Hotz about it
+# in person. He said that some Antartic locations set their local
+# time so that noon is the warmest part of the day, and that this
+# changes during the year and does not necessarily correspond to mean
+# solar noon. So the Vostok time might have been whatever the clocks
+# happened to be during their visit. So we still don't really know what time
+# it is at Vostok. But we'll guess UTC+6.
+#
Zone Antarctica/Vostok 0 - zzz 1957 Dec 16
6:00 - VOST # Vostok time