How to setup cron job to run every 5 days?

Question

I want to setup cronjob which will start on for example today and it will run every 5 days. This is what I have now, is this will work correctly ? If I install this job at 5 o`clock and then every 5 days on 6 AM.

0 6 */5 * * mailx -r [email protected] -s "Message title" -c "[email protected]" [email protected] < body.txt

Answer 1

0 0 */5 * *  midnight every 5 days.

See this, similar question just asked for every 3 days. Cron job every three days