我如何使用mysql事件在午夜发布帖子

First of all thanks in advance. i m creating a product management site in php .a concept of the site is to when a product post is inserted it will be activated and display at mid night and now i want tell something about a date-time(mysql table name is deals and its date column name is submit_date) formats 2013-04-05 13:15:43First of all thanks in advance. i m creating a