diff --git a/lib/time/update.bash b/lib/time/update.bash
index 26ad79d52d..629e74fce8 100755
--- a/lib/time/update.bash
+++ b/lib/time/update.bash
@@ -8,8 +8,8 @@
 # Consult https://www.iana.org/time-zones for the latest versions.
 
 # Versions to use.
-CODE=2017c
-DATA=2017c
+CODE=2018e
+DATA=2018e
 
 set -e
 rm -rf work
diff --git a/lib/time/zoneinfo.zip b/lib/time/zoneinfo.zip
index 0703e08e36..08dca21418 100644
Binary files a/lib/time/zoneinfo.zip and b/lib/time/zoneinfo.zip differ