Laravel - Validation - Rule After

The field under validation must be a value after a given date. The dates will be passed into the strtotime PHP function in order to be converted to a valid DateTime instance:

    'start_date' => 'required|date|after:tomorrow'

Instead of passing a date string to be evaluated by strtotime, you may specify another field to compare against the date:

    'finish_date' => 'required|date|after:start_date'