diff -Nru coreutils-8.26/debian/changelog coreutils-8.26/debian/changelog
--- coreutils-8.26/debian/changelog	2017-03-01 03:33:36.000000000 -0500
+++ coreutils-8.26/debian/changelog	2017-10-04 15:56:41.000000000 -0400
@@ -1,3 +1,10 @@
+coreutils (8.26-3ubuntu4) artful; urgency=medium
+
+  * debian/patches/test-misc-date-tzdb-2017a.patch: fixes date test
+    caused by tzdb-2017a update. LP: #1679865.
+
+ -- Tiago Stürmer Daitx <tiago.daitx@ubuntu.com>  Wed, 04 Oct 2017 19:56:41 +0000
+
 coreutils (8.26-3ubuntu3) zesty; urgency=medium
 
   * Ignore the cut-huge-range test failure on armhf, only seen on the buildds.
diff -Nru coreutils-8.26/debian/patches/series coreutils-8.26/debian/patches/series
--- coreutils-8.26/debian/patches/series	2017-02-28 04:13:10.000000000 -0500
+++ coreutils-8.26/debian/patches/series	2017-10-04 15:56:41.000000000 -0400
@@ -9,3 +9,4 @@
 99_kfbsd_fstat_patch.patch
 99_hppa_longlong.patch
 99_float_endian_detection.patch
+test-misc-date-tzdb-2017a.patch
diff -Nru coreutils-8.26/debian/patches/test-misc-date-tzdb-2017a.patch coreutils-8.26/debian/patches/test-misc-date-tzdb-2017a.patch
--- coreutils-8.26/debian/patches/test-misc-date-tzdb-2017a.patch	1969-12-31 19:00:00.000000000 -0500
+++ coreutils-8.26/debian/patches/test-misc-date-tzdb-2017a.patch	2017-10-04 15:56:41.000000000 -0400
@@ -0,0 +1,56 @@
+Description: Fix date test after tzdb-2017a update
+ Problem reported by Bernhard Voelker in:
+ http://lists.gnu.org/archive/html/coreutils/2017-03/msg00026.html
+ * tests/misc/date-debug.sh: Port test to tzdb 2017a,
+ and future-proof the America/Belize test.
+Author: Paul Eggert <address@hidden>
+Origin: http://lists.gnu.org/archive/html/coreutils/2017-03/msg00026.html
+Bug-Ubuntu: https://bugs.launchpad.net/ubuntu/+source/coreutils/+bug/1679865
+Forwarded: not-needed
+Reviewed-by: Tiago Stürmer Daitx
+Last-Update: 2017-10-05
+---
+This patch header follows DEP-3: http://dep.debian.net/deps/dep3/
+
+From b6d68d90981d9ce747d5d87f4f4da3991b3ee82b Mon Sep 17 00:00:00 2001
+From: Paul Eggert <address@hidden>
+Date: Thu, 9 Mar 2017 23:59:05 -0800
+Subject: [PATCH] tests: port to tzdb-2017a
+
+Problem reported by Bernhard Voelker in:
+http://lists.gnu.org/archive/html/coreutils/2017-03/msg00026.html
+* tests/misc/date-debug.sh: Port test to tzdb 2017a,
+and future-proof the America/Belize test.
+---
+ tests/misc/date-debug.sh | 9 +++++----
+ 1 file changed, 5 insertions(+), 4 deletions(-)
+
+--- a/tests/misc/date-debug.sh
++++ b/tests/misc/date-debug.sh
+@@ -52,10 +52,11 @@ date: output timezone: -06:00 (set from
+ date: final: 661095000.000000000 (epoch-seconds)
+ date: final: (Y-M-D) 1990-12-13 13:30:00 (UTC0)
+ date: final: (Y-M-D) 1990-12-13 07:30:00 (output timezone TZ=-06:00)
+-Thu Dec 13 07:30:00 CST 1990
++Thu Dec 13 07:30:00 -0600 1990
+ EOF
+ 
+-TZ=America/Belize date --debug -d "$in1" >out1 2>&1 || fail=1
++TZ=America/Belize date --debug -d "$in1" +'%a %b %e %T %z %Y' >out1 2>&1 ||
++  fail=1
+ 
+ compare exp1 out1 || fail=1
+ 
+@@ -94,10 +95,10 @@ date: output timezone: -05:00 (set from
+ date: final: 1.000000000 (epoch-seconds)
+ date: final: (Y-M-D) 1970-01-01 00:00:01 (UTC0)
+ date: final: (Y-M-D) 1969-12-31 19:00:01 (output timezone TZ=-05:00)
+-Wed Dec 31 19:00:01 PET 1969
++Wed Dec 31 19:00:01 -0500 1969
+ EOF
+ 
+-TZ=America/Lima date --debug -d "$in3" >out3 2>&1 || fail=1
++TZ=America/Lima date --debug -d "$in3" +'%a %b %e %T %z %Y' >out3 2>&1 || fail=1
+ compare exp3 out3 || fail=1
+ 
+ Exit $fail