''/etc/anacrontab'' :
<file>
...
RANDOM_DELAY=10
...
START_HOURS_RANGE=3-22
...
#period in days   delay in minutes   job-identifier	command
1                 2                  testjob            date >> /tmp/date
</file>

Syntax überprüfen:
  anacron -T

testjob sofort ausführen:
  anacron -df testjob