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
'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'