diff --git a/refpolicy/policy/modules/kernel/devices.if b/refpolicy/policy/modules/kernel/devices.if
index b93c642f..5a7713ca 100644
--- a/refpolicy/policy/modules/kernel/devices.if
+++ b/refpolicy/policy/modules/kernel/devices.if
@@ -343,6 +343,31 @@ class dir { getattr read search };
 class chr_file { getattr read ioctl };
 ')
 
+########################################
+#
+# devices_write_realtime_clock(domain)
+#
+define(`devices_write_realtime_clock',`
+requires_block_template(`$0'_depend)
+allow $1 device_t:dir { getattr read search };
+allow $1 clock_device_t:chr_file { setattr lock write append ioctl };
+')
+
+define(`devices_write_realtime_clock_depend',`
+type device_t, clock_device_t;
+class dir { getattr read search };
+class chr_file { setattr lock write append ioctl };
+')
+
+########################################
+#
+# devices_modify_realtime_clock(domain)
+#
+define(`devices_modify_realtime_clock',`
+devices_read_realtime_clock($1)
+devices_write_realtime_clock($1)
+')
+
 ########################################
 #
 # devices_record_sound_input(domain)