Version: Laravel 5.5 Model: Post, Comment Post’s columns: id, title, content, created_at, updated_at Comment’s columns: id, post_id, content, c_date, c_time, u_date, u_time Relation: A post has many comments and a comment belongs to a post. The following shows how to get posts, which had been comments in recent 24 hours. use CarbonCarbon; // use package Post::whereHas('comments', function ($query) { $query->whereRaw('(u_date = ? AND u_time >= ?) OR (u_date =? AND