diff --git a/hosts/bjarte/configuration.nix b/hosts/bjarte/configuration.nix
index 253959c..5fc331f 100644
--- a/hosts/bjarte/configuration.nix
+++ b/hosts/bjarte/configuration.nix
@@ -37,6 +37,8 @@
     #../../profiles/autossh-reverse-tunnels
   ];
 
+  time.timeZone = null; # allows imperative configuring
+
   networking.firewall.allowedTCPPorts = [ 57621 ]; # spotify local discovery
 
   # Networking
diff --git a/profiles/locale-no.nix b/profiles/locale-no.nix
index a9c6ed4..3698b0a 100644
--- a/profiles/locale-no.nix
+++ b/profiles/locale-no.nix
@@ -1,7 +1,7 @@
 { lib, ... }: lib.mkMerge [
 {
   # Time zone and internationalisation properties.
-  time.timeZone      = "Europe/Oslo";
+  time.timeZone      = lib.mkDefault "Europe/Oslo";
   i18n.defaultLocale = "en_US.utf8";
   i18n.extraLocaleSettings.LC_ADDRESS        = "nb_NO.utf8";
   i18n.extraLocaleSettings.LC_IDENTIFICATION = "nb_NO.utf8";