database/configuration/cron/time_synch.crontab

   1
   2 SHELL=/bin/bash
   3
   4 # m h dom mon dow command
   5
   6 # standard to synch to local machine.
   7 0,4,8,12,16,20,24,28,32,36,40,44,48,52,56 * * * * /usr/sbin/sntp -P no -r equanimity
   8 or
   9 0,4,8,12,16,20,24,28,32,36,40,44,48,52,56 * * * * /usr/bin/rdate -s -n equanimity
  10
  11 # one machine on the network uses this version, to synch externally.
  12 0 0,4,8,12,16,20 * * * /usr/sbin/sntp -P no -r time.nist.gov
  13 or
  14 0 0,4,8,12,16,20 * * * /usr/bin/rdate -s -n time.nist.gov
  15