diff --git a/systems/x86_64-linux/greylag/time/default.nix b/systems/x86_64-linux/greylag/time/default.nix
new file mode 100644
index 0000000..231eaae
--- /dev/null
+++ b/systems/x86_64-linux/greylag/time/default.nix
@@ -0,0 +1,3 @@
+{ ... }: {
+  time.timeZone = "UTC";
+}