/etc/cron.daily/yum.cron:

Yum crontab starting
  Sleeping for 153 minutes
  No other yum process running.
********** Starting ***** errata ***** STARTING ********
   Creating Config File
*********START** errata YUM.CONF FILE **START**********
.  .  .

Can someone illuminate why yum.cron (or cron itself?) is sleeping for 153 minutes?

TIA,
r.m.