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-rw-r--r--time/southamerica6
1 files changed, 4 insertions, 2 deletions
diff --git a/time/southamerica b/time/southamerica
index 927f71638a..09e0aa6d28 100644
--- a/time/southamerica
+++ b/time/southamerica
@@ -1,4 +1,4 @@
-# @(#)southamerica 7.17
+# @(#)southamerica 7.18
# 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
@@ -533,7 +533,9 @@ Rule Uruguay 1989 only - Mar 12 0:00 0 -
Rule Uruguay 1989 only - Oct 29 0:00 1:00 S
Rule Uruguay 1990 1992 - Mar Sun>=1 0:00 0 -
Rule Uruguay 1990 1991 - Oct Sun>=21 0:00 1:00 S
-Rule Uruguay 1992 1993 - Oct Sun>=15 0:00 1:00 S
+# Shanks's 4th edition (1995) says no DST was observed in 1990/1 and 1991/2,
+# and that 1992/3's DST was from 10-25 to 03-01. Go with IATA.
+Rule Uruguay 1992 only - Oct 18 0:00 1:00 S
Rule Uruguay 1993 only - Feb 28 0:00 0 -
# Zone NAME GMTOFF RULES FORMAT [UNTIL]
Zone America/Montevideo -3:44:44 - LMT 1898 Jun 28