diff --git a/common/configuration.nix b/common/configuration.nix
index 34af051..95e2227 100644
--- a/common/configuration.nix
+++ b/common/configuration.nix
@@ -68,7 +68,10 @@ in
   networking.networkmanager.enable = true;
 
   # Set your time zone.
-  time.timeZone = "America/Chicago";
+  time.timeZone = let
+    automatic = config.services.automatic-timezoned.enable;
+  in
+    lib.mkIf (!automatic) "America/Chicago";
 
   # Select internationalisation properties.
   i18n.defaultLocale = "en_US.UTF-8";
diff --git a/common/laptop-things.nix b/common/laptop-things.nix
index 753d84e..af185a5 100644
--- a/common/laptop-things.nix
+++ b/common/laptop-things.nix
@@ -27,6 +27,8 @@
         };
       };
     };
+
+    automatic-timezoned.enable = true;
   };
 
   networking.networkmanager.plugins = [pkgs.networkmanager-openvpn];