To add Cron Job in your Cpanel use the following steps.
1. Log into your Cpanel
Log into Cpanel by going to https://www.yoursite.com/cpanel/
2. Open the Task Scheduler
Under the “advanced” section click on “Cron Jobs”
3. Add a Cron Job
Under “Add New Cron Job”, select your time interval. ~10 minutes will do just fine.
Set the Cron command to the following, replacing yourwebsite.com with your actual domain name and click on “Add New Cron Job.”
And now you’re done. Now regardless of traffic, your tasks will run on time.