diff --git a/machine/backyard/default.nix b/machine/backyard/default.nix
index 47f6273..ed1c78d 100644
--- a/machine/backyard/default.nix
+++ b/machine/backyard/default.nix
@@ -18,7 +18,12 @@
   networking.networkmanager.enable = true;
 
   # Set your time zone.
-  time.timeZone = "America/Los_Angeles";
+  time.timeZone = "UTC";
+
+  services.ntp = {
+    enable = true;
+    servers = [ "time.nist.gov" ];
+  };
 
   # Select internationalisation properties.
   i18n.defaultLocale = "en_US.UTF-8";