diff --git a/modules/sys/time.nix b/modules/sys/time.nix
index 4c37bb0..9ef7cd3 100644
--- a/modules/sys/time.nix
+++ b/modules/sys/time.nix
@@ -14,7 +14,7 @@
       "0.pool.ntp.org"
     ];
   };
-  time.timeZone = "America/Denver";
+  time.timeZone = mkDefault "America/Denver";
   i18n.defaultLocale = "en_US.UTF-8";
   i18n.extraLocaleSettings = {
     LC_ADDRESS = "en_US.UTF-8";