diff --git a/05/chrony.conf b/05/chrony.conf
new file mode 100644
index 0000000..e6a7abc
--- /dev/null
+++ b/05/chrony.conf
@@ -0,0 +1,6 @@
+pool 0.de.pool.ntp.org iburst
+pool 2.de.pool.ntp.org iburst
+
+makestep 1 3
+rtcsync
+