Most experienced webmasters are familiar with how WordPress handles scheduling time-based tasks. Thanks to plugins such as WP Crontrol, you are going to have an easier time handling the WP-Cron system. It lets you view all events, including their arguments, call back functions, and due time.
You can edit and delete any cron event, add new ones, and bulk delete events. You also get a message if your cron system is broken. You can easily add cron events by entering hook name, arguments, run date, and recurrence options. This is a free plugin.