Answer by Spechal for When does `cron.daily` run?

For CentOS 6, you need to grep /etc/anacrontab and the answer varies if the server/laptop/dekstop/etc has been turned off or not.

cat /etc/anacrontab # /etc/anacrontab: configuration file for anacron# See anacron(8) and anacrontab(5) for details.SHELL=/bin/shPATH=/sbin:/bin:/usr/sbin:/usr/binMAILTO=root# the maximal random delay added to the base delay of the jobsRANDOM_DELAY=45# the jobs will be started during the following hours onlySTART_HOURS_RANGE=3-22#period in days   delay in minutes   job-identifier   command1   5   cron.daily      nice run-parts /etc/cron.daily7   25  cron.weekly     nice run-parts /etc/cron.weekly@monthly 45 cron.monthly        nice run-parts /etc/cron.monthly

So, between the hours of 3AM and 10PM** (after reboot and after the machine has been up for 5 minutes^^), run /etc/cron.daily. If there is no reboot, the job should run at 3:05AM++.

** As defined by START_HOURS_RANGE^^ As defined by FIELD_TWO (i.e. the 5 after the 1 in the cron.daily line)++ plus a random time between 0 and 45 minutes as defined by RANDOM_DELAY

Reference: http://linux.die.net/man/5/anacrontab