--- a/etc/conf.d/vdr.shutdown	
+++ a/etc/conf.d/vdr.shutdown	
@@ -191,6 +191,12 @@ 
 #   default: 10 minutes
 #SHUTDOWN_DEFAULT_RETRY_TIME="10"
 
+#
+# Set the systems hardware clock during shutdown.
+#   allowed values: yes no
+#   default: no
+#SHUTDOWN_SYSTOHC="yes"
+
 # Debugging variables:
 #DEBUG=1
 #DRY_SHUTDOWN=1
--- a/usr/share/vdr/shutdown/pre-shutdown-98-systohc.sh	
+++ a/usr/share/vdr/shutdown/pre-shutdown-98-systohc.sh	
@@ -0,0 +1,7 @@ 
+do_systohc() {
+	hwclock --systohc
+}
+
+if yesno "${SHUTDOWN_SYSTOHC:-no}"; then
+	do_systohc
+fi