test/jdk/sun/util/calendar/zi/tzdata/africa

@@ -19,19 +19,21 @@
 #
 # Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 # or visit www.oracle.com if you need additional information or have any
 # questions.
 #
+# tzdb data for Africa and environs
+
 # This file is in the public domain, so clarified as of
 # 2009-05-17 by Arthur David Olson.
 
 # This file is by no means authoritative; if you think you know better,
 # go ahead and edit the file (and please send any changes to
 # tz@iana.org for general use in the future).  For more, please see
 # the file CONTRIBUTING in the tz distribution.
 
-# From Paul Eggert (2017-04-09):
+# From Paul Eggert (2018-05-27):
 #
 # Unless otherwise specified, the source for data through 1990 is:
 # Thomas G. Shanks and Rique Pottenger, The International Atlas (6th edition),
 # San Diego: ACS Publications, Inc. (2003).
 # Unfortunately this book contains many errors and cites no sources.

@@ -72,17 +74,19 @@
 #        +01    WAT     West Africa Time
 # Murray's suggestion seems to have caught on in news reports and the like.
 # I vaguely recall 'WAT' also being used for -01 in the past but
 # cannot now come up with solid citations.
 #
-# I invented the following abbreviations; corrections are welcome!
-#        +02    WAST    West Africa Summer Time (no longer used)
-#        +03    CAST    Central Africa Summer Time (no longer used)
-#        +03    SAST    South Africa Summer Time (no longer used)
+# I invented the following abbreviations in the 1990s:
+#        +02    WAST    West Africa Summer Time
+#        +03    CAST    Central Africa Summer Time
+#        +03    SAST    South Africa Summer Time
 #        +03    EAT     East Africa Time
-# 'EAT' also seems to have caught on; the others are rare but are paired
-# with better-attested non-DST abbreviations.
+# 'EAT' seems to have caught on and is in current timestamps, and though
+# the other abbreviations are rarer and are only in past timestamps,
+# they are paired with better-attested non-DST abbreviations.
+# Corrections are welcome.
 
 # Algeria
 # Rule  NAME    FROM    TO      TYPE    IN      ON      AT      SAVE    LETTER/S
 Rule    Algeria 1916    only    -       Jun     14      23:00s  1:00    S
 Rule    Algeria 1916    1919    -       Oct     Sun>=1  23:00s  0       -

@@ -383,10 +387,17 @@
 # See Africa/Lagos.
 
 # Eritrea
 # Ethiopia
 # See Africa/Nairobi.
+#
+# Unfortunately tzdb records only Western clock time in use in Ethiopia,
+# as the tzdb format is not up to properly recording a common Ethiopian
+# timekeeping practice that is based on solar time.  See:
+# Mortada D. If you have a meeting in Ethiopia, you'd better double
+# check the time. PRI's The World. 2015-01-30 15:15 -05.
+# https://www.pri.org/stories/2015-01-30/if-you-have-meeting-ethiopia-you-better-double-check-time
 
 # Gabon
 # See Africa/Lagos.
 
 # Gambia