diff --git a/tzdata/.footprint b/tzdata/.footprint
index 1d4814a8..de1c5808 100644
--- a/tzdata/.footprint
+++ b/tzdata/.footprint
@@ -1,10 +1,10 @@
 drwxr-xr-x	root/root	usr/
 drwxr-xr-x	root/root	usr/bin/
 -rwxr-xr-x	root/root	usr/bin/tzselect
+-rwxr-xr-x	root/root	usr/bin/zdump
 drwxr-xr-x	root/root	usr/lib/
 -rw-r--r--	root/root	usr/lib/libtz.a
 drwxr-xr-x	root/root	usr/sbin/
--rwxr-xr-x	root/root	usr/sbin/zdump
 -rwxr-xr-x	root/root	usr/sbin/zic
 drwxr-xr-x	root/root	usr/share/
 drwxr-xr-x	root/root	usr/share/man/
@@ -618,7 +618,6 @@ drwxr-xr-x	root/root	usr/share/zoneinfo-leaps/US/
 -rw-r--r--	root/root	usr/share/zoneinfo-leaps/US/Michigan
 -rw-r--r--	root/root	usr/share/zoneinfo-leaps/US/Mountain
 -rw-r--r--	root/root	usr/share/zoneinfo-leaps/US/Pacific
--rw-r--r--	root/root	usr/share/zoneinfo-leaps/US/Pacific-New
 -rw-r--r--	root/root	usr/share/zoneinfo-leaps/US/Samoa
 -rw-r--r--	root/root	usr/share/zoneinfo-leaps/UTC
 -rw-r--r--	root/root	usr/share/zoneinfo-leaps/Universal
@@ -1233,7 +1232,6 @@ drwxr-xr-x	root/root	usr/share/zoneinfo/US/
 -rw-r--r--	root/root	usr/share/zoneinfo/US/Michigan
 -rw-r--r--	root/root	usr/share/zoneinfo/US/Mountain
 -rw-r--r--	root/root	usr/share/zoneinfo/US/Pacific
--rw-r--r--	root/root	usr/share/zoneinfo/US/Pacific-New
 -rw-r--r--	root/root	usr/share/zoneinfo/US/Samoa
 -rw-r--r--	root/root	usr/share/zoneinfo/UTC
 -rw-r--r--	root/root	usr/share/zoneinfo/Universal
@@ -1242,7 +1240,6 @@ drwxr-xr-x	root/root	usr/share/zoneinfo/US/
 -rw-r--r--	root/root	usr/share/zoneinfo/Zulu
 -rw-r--r--	root/root	usr/share/zoneinfo/iso3166.tab
 -rw-r--r--	root/root	usr/share/zoneinfo/leapseconds
--rw-r--r--	root/root	usr/share/zoneinfo/localtime
 -rw-r--r--	root/root	usr/share/zoneinfo/posixrules
 -rw-r--r--	root/root	usr/share/zoneinfo/tzdata.zi
 -rw-r--r--	root/root	usr/share/zoneinfo/zone.tab
diff --git a/tzdata/.md5sum b/tzdata/.md5sum
index fb59d334..b98e2a25 100644
--- a/tzdata/.md5sum
+++ b/tzdata/.md5sum
@@ -1,2 +1 @@
-2fe6986231db5182c61d565021a0cd7b  tzcode2017c.tar.gz
-1e751e7e08f8b68530674f04619d894d  tzdata2017c.tar.gz
+e602273e3103e80a44f89555fade9c4c  tzdb-2018b.tar.lz
diff --git a/tzdata/.signature b/tzdata/.signature
index 2ca9fe2c..c2037fec 100644
--- a/tzdata/.signature
+++ b/tzdata/.signature
@@ -1,6 +1,5 @@
 untrusted comment: verify with /etc/ports/core.pub
-RWRJc1FUaeVeql5dQNme6wQpt/cHK5Jig2EJb1UkLcs/UTCX6vOSG55ONC3dqpqKaa+BaizWGz6wWHtyRjSMwhDqcMWRn6zS8go=
-SHA256 (Pkgfile) = 10706387f38934bd11c9c387b1b684ade75e872c4c4a1e5e05e279a5b1280f75
-SHA256 (.footprint) = 5dbcc6f162091ef626e4cce30b58e7814df2ec032d68ba63649796166acb9041
-SHA256 (tzdata2017c.tar.gz) = d6543f92a929826318e2f44ff3a7611ce5f565a43e10250b42599d0ba4cbd90b
-SHA256 (tzcode2017c.tar.gz) = 81e8b4bc23e60906640c266bbff3789661e22f0fa29fe61b96ec7c2816c079b7
+RWRJc1FUaeVeqvFHvPOZLmaIfVe6nGUOGdTjPlb79kLDYEjClIsyM8pXcG9q+le3qXEt8Cc5WR43CpNVJkDRKlEjME3WGlkrzg0=
+SHA256 (Pkgfile) = ae73aac7bc38f4f2e06223e3c83a7cc28882f8814608f348a7d3fa6967be46ab
+SHA256 (.footprint) = e67070821dab31530ca47dd0072385f94d88a25f7b26a55c2183f0d35e30bbdb
+SHA256 (tzdb-2018b.tar.lz) = c66d5433092bc82af63dd1e8e96e4b941f5f9c4b474d3dae30a2da333197af77
diff --git a/tzdata/Pkgfile b/tzdata/Pkgfile
index e4c436a5..0c983ae4 100644
--- a/tzdata/Pkgfile
+++ b/tzdata/Pkgfile
@@ -3,25 +3,20 @@
 # Maintainer:  CRUX System Team, core-ports at crux dot nu 
 
 name=tzdata
-version=2017c
+version=2018b
 release=1
-source=(http://www.iana.org/time-zones/repository/releases/$name$version.tar.gz
-        http://www.iana.org/time-zones/repository/releases/tzcode$version.tar.gz)
+source=(https://data.iana.org/time-zones/releases/tzdb-$version.tar.lz)
 
 build() {
+    cd tzdb-$version
 
-    make -j1 install \
-        CFLAGS="$CFLAGS" \
-        DESTDIR=$PKG \
-        TOPDIR=/usr \
-        TZDIR=/usr/share/zoneinfo \
-        ETCDIR=/usr/sbin \
-        MANDIR=/usr/share/man 
+    make CFLAGS="$CFLAGS"
+    make DESTDIR=$PKG install
 
     # provided by man-pages
     rm -r $PKG/usr/share/man/man{5,8}
 
-    # move tzselect to /usr/bin
-    install -d $PKG/usr/bin
-    mv $PKG/usr/{sbin/tzselect,bin}
+    # conflict with glibc
+    rm $PKG/etc/localtime
+    rmdir $PKG/etc
 }