diff --git a/Puppetfile b/Puppetfile
index 6d50a38..5c887fc 100644
--- a/Puppetfile
+++ b/Puppetfile
@@ -38,6 +38,7 @@ mod 'puppet-keepalived', '3.6.0'
 # other
 mod 'ghoneycutt-puppet', '3.3.0'
 mod 'saz-sudo', '8.0.0'
+mod 'ghoneycutt-timezone', '4.0.0'
 mod 'dalen-puppetdbquery', '3.0.1'
 mod 'markt-galera', '3.1.0'
 mod 'kogitoapp-minio', '1.1.4'
diff --git a/hieradata/common.yaml b/hieradata/common.yaml
index 2f4d7dc..185780a 100644
--- a/hieradata/common.yaml
+++ b/hieradata/common.yaml
@@ -1,5 +1,8 @@
 ---
 lookup_options:
+  hiera_classes:
+    merge:
+      strategy: deep
   profiles::packages::install:
     merge:
       strategy: deep
@@ -39,6 +42,9 @@ lookup_options:
 
 facts_path: '/opt/puppetlabs/facter/facts.d'
 
+hiera_classes:
+  - timezone
+
 profiles::ntp::client::ntp_role: 'roles::infra::ntp::server'
 profiles::ntp::client::peers:
   - 0.pool.ntp.org
diff --git a/hieradata/country/au/region/drw1.yaml b/hieradata/country/au/region/drw1.yaml
new file mode 100644
index 0000000..703d863
--- /dev/null
+++ b/hieradata/country/au/region/drw1.yaml
@@ -0,0 +1,2 @@
+---
+timezone::timezone: 'Australia/Darwin'
diff --git a/hieradata/country/au/region/syd1.yaml b/hieradata/country/au/region/syd1.yaml
new file mode 100644
index 0000000..2a744b7
--- /dev/null
+++ b/hieradata/country/au/region/syd1.yaml
@@ -0,0 +1,2 @@
+---
+timezone::timezone: 'Australia/Sydney'
diff --git a/site/profiles/manifests/base.pp b/site/profiles/manifests/base.pp
index 65bf0cb..fb463d6 100644
--- a/site/profiles/manifests/base.pp
+++ b/site/profiles/manifests/base.pp
@@ -60,4 +60,7 @@ class profiles::base (
   if $::facts['is_virtual'] and $::facts['dmi']['manufacturer'] == 'QEMU' {
     include profiles::qemu::agent
   }
+
+  # include classes from hiera
+  lookup('hiera_classes', Array[String], 'unique').include
 }