diff --git a/default.nix b/default.nix
index 3e47ead..2eccc6f 100644
--- a/default.nix
+++ b/default.nix
@@ -15,11 +15,8 @@
 
   options.variables = {
     hostname = lib.mkOption { default = "nixos"; };
-    timezone = lib.mkOption { default = "America/New_York"; };
     hostHardwareConfiguration = lib.mkOption { default = ./hardware/laptop.nix; };
     stateVersion = lib.mkOption { default = "22.11"; };
-    defaultLocale = lib.mkOption { default = "ja_JP.UTF-8"; };
-    supportedLocales = lib.mkOption { default = [ "ja_JP.UTF-8/UTF-8" "en_US.UTF-8/UTF-8" "fr_FR.UTF-8/UTF-8" ]; };
     username = lib.mkOption { default = "user"; };
     defaultBrowser = lib.mkOption { default = "librewolf"; };
   };
diff --git a/modules/locale.nix b/modules/locale.nix
index 67be9a8..7764131 100644
--- a/modules/locale.nix
+++ b/modules/locale.nix
@@ -1,4 +1,4 @@
-let VARIABLES = import ../src/variables.nix; in {
-  i18n.defaultLocale = VARIABLES.defaultLocale;
-  i18n.supportedLocales = VARIABLES.supportedLocales;
+{
+  i18n.defaultLocale = "ja_JP.UTF-8";
+  i18n.supportedLocales = [ "ja_JP.UTF-8/UTF-8" "en_US.UTF-8/UTF-8" "fr_FR.UTF-8/UTF-8" ];
 }
diff --git a/modules/timezone.nix b/modules/timezone.nix
index 8e88c84..5174a5b 100644
--- a/modules/timezone.nix
+++ b/modules/timezone.nix
@@ -1,3 +1,3 @@
-let VARIABLES = import ../src/variables.nix; in {
-  time.timeZone = "${VARIABLES.timezone}";
+{
+  time.timeZone = "America/New_York";
 }
diff --git a/src/variables.nix b/src/variables.nix
index 8dea357..fd1d199 100644
--- a/src/variables.nix
+++ b/src/variables.nix
@@ -1,11 +1,8 @@
 {
   hostname = "nixos";
   system = "x86_64-linux";
-  timezone = "America/New_York";
   hostHardwareConfiguration = ../hardware/laptop.nix;
   stateVersion = "22.11";
-  defaultLocale = "ja_JP.UTF-8";
-  supportedLocales = [ "ja_JP.UTF-8/UTF-8" "en_US.UTF-8/UTF-8" "fr_FR.UTF-8/UTF-8" ];
   username = "user";
   defaultBrowser = "librewolf";
 }