Create below script /etc/cron.daily/ntpdate
Comment out the echo statements to avoid cron spewing out mail daily!
#!/bin/bash # # Update time daily # echo "hwclock: Before running ntpdate date: `hwclock -r`" echo "rtclock: Before running ntpdate date: `date`" /usr/sbin/ntpdate ntp.ubuntu.com pool.ntp.org echo "hwclock: After running ntpdate date: `hwclock -r`" echo "rtclock: After running ntpdate date: `date`" echo " " # exit 0
Set Execute permissions
chmod 744 /etc/cron.daily/ntpdate