[tz] Paraguay DST ends earlier

[Paul Eggert]

Thanks for the heads-up.  Here's a proposed patch, which I've
pushed to github.

>From d89986e3aa83a1e4db60012e322dd55d03c3ccd0 Mon Sep 17 00:00:00 2001
From: Paul Eggert <eggert at cs.ucla.edu>
Date: Thu, 7 Mar 2013 14:12:38 -0800
Subject: [PATCH] Paraguay ends DST early this year.

* southamerica (Para): DST ends on March 24 this year.  (Thanks to
Steffen Thorsen).  For now, assume the change is just this year.
---
 southamerica | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/southamerica b/southamerica
index f77142e..9ef8b82 100644
--- a/southamerica
+++ b/southamerica
@@ -1567,6 +1567,15 @@ Rule	Para	2005	2009	-	Mar	Sun>=8	0:00	0	-
 # ...
 Rule	Para	2010	max	-	Oct	Sun>=1	0:00	1:00	S
 Rule	Para	2010	max	-	Apr	Sun>=8	0:00	0	-
+#
+# From Steffen Thorsen (2013-03-07):
+# Paraguay will end DST on 2013-03-24 00:00....
+# They do not tell if this will be a permanent change or just this year....
+# http://www.ande.gov.py/interna.php?id=1075
+#
+# From Paul Eggert (2013-03-07):
+# For now, assume it's just this year.
+Rule	Para	2013	only	-	Mar	24	0:00	0	-
 
 # Zone	NAME		GMTOFF	RULES	FORMAT	[UNTIL]
 Zone America/Asuncion	-3:50:40 -	LMT	1890
-- 
1.7.11.7