diff --git a/man/systemd-run.xml b/man/systemd-run.xml
index 4dd81395cd..8f7a6229cc 100644
--- a/man/systemd-run.xml
+++ b/man/systemd-run.xml
@@ -316,6 +316,18 @@
+
+
+
+
+ Defines a trigger based on system clock jumps or timezone changes for starting the
+ specified command. See OnClockChange= and OnTimezoneChange= in
+ systemd.timer5. These
+ options are shortcuts for --timer-property=OnClockChange=yes and
+ --timer-property=OnTimezoneChange=yes. These options may not be combined with
+ or .
+
+
diff --git a/man/systemd.timer.xml b/man/systemd.timer.xml
index f1afcf6b7e..6a13e52ccf 100644
--- a/man/systemd.timer.xml
+++ b/man/systemd.timer.xml
@@ -259,6 +259,17 @@
AccuracySec=1us.
+
+ OnClockChange=
+ OnTimezoneChange=
+
+ These options take boolean arguments. When true, the service unit will be triggered
+ when the system clock (CLOCK_REALTIME) jumps relative to the monotonic clock
+ (CLOCK_MONOTONIC), or when the local system timezone is modified. These options
+ can be used alone or in combination with other timer expressions (see above) within the same timer
+ unit. These options default to false.
+
+
Unit=