boot-up. The argument may also include time units. Example:
"OnBootSec=5h 30min" means 5 hours and 30 minutes after
boot-up. For details about the syntax of time spans, see
- <citerefentry><refentrytitle>systemd.unit</refentrytitle><manvolnum>5</manvolnum></citerefentry>.</para>
+ <citerefentry><refentrytitle>systemd.time</refentrytitle><manvolnum>7</manvolnum></citerefentry>.</para>
<para>If a timer configured with <varname>OnBootSec=</varname>
or <varname>OnStartupSec=</varname> is already in the past