+
+ <para>Unless <varname>DefaultDependencies=</varname>
+ is set to <option>false</option>, timer units will
+ implicitly have dependencies of type
+ <varname>Conflicts=</varname> and
+ <varname>Before=</varname> on
+ <filename>shutdown.target</filename>. These ensure
+ that timer units are stopped cleanly prior to system
+ shutdown. Only timer units involved with early boot or
+ late system shutdown should disable this
+ option.</para>