diff --git a/lib/time/update.bash b/lib/time/update.bash
index c2377e1243..e0eb891e3d 100755
--- a/lib/time/update.bash
+++ b/lib/time/update.bash
@@ -7,8 +7,8 @@
 # downloaded from the ICANN/IANA distribution.
 
 # Versions to use.
-CODE=2013b
-DATA=2013b
+CODE=2013c
+DATA=2013c
 
 set -e
 rm -rf work
diff --git a/lib/time/zoneinfo.zip b/lib/time/zoneinfo.zip
index c10a42576e..e9ddfff818 100644
Binary files a/lib/time/zoneinfo.zip and b/lib/time/zoneinfo.zip differ