diff --git a/common.nix b/common.nix
index 597c367..d64c4d4 100644
--- a/common.nix
+++ b/common.nix
@@ -121,6 +121,12 @@ with builtins;
   services.chrony = {
     enable = true;
     enableNTS = true;
+    servers = [
+      "0.de.pool.ntp.org"
+      "1.de.pool.ntp.org"
+      "2.de.pool.ntp.org"
+      "3.de.pool.ntp.org"
+    ];
     serverOption = "offline";
     extraFlags = [ "-s" ];
     extraConfig = "makestep 1 -1";