diff --git a/m/common/main.nix b/m/common/main.nix
index e43ce4f..7054495 100644
--- a/m/common/main.nix
+++ b/m/common/main.nix
@@ -6,6 +6,7 @@
     ./fs.nix
     ./hw.nix
     ./net.nix
+    ./ntp.nix
     ./slurm.nix
     ./ssh.nix
     ./users.nix
diff --git a/m/common/ntp.nix b/m/common/ntp.nix
new file mode 100644
index 0000000..d4ddb25
--- /dev/null
+++ b/m/common/ntp.nix
@@ -0,0 +1,9 @@
+{ pkgs, ... }:
+
+{
+  services.ntp.enable = true;
+
+  # Use the NTP server at BSC, as we don't have direct access
+  # to the outside world
+  networking.timeServers = [ "84.88.52.36" ];
+}