It is not an application for disclosure, but automatic disclosure, including bibliographic item information (application number, application date, priority date, publication number, publication date, applicant, inventor, classification number, agency, invention title, abstract, etc.), as well as the full text of the description and claims. In other words, all contents of the patent application are fully open to the public from the date of publication.
You can submit a request for substantive examination on the day of application or any time within three years after the date of application, but the Patent Office will only mark that you have submitted a request for substantive examination. As for when you can actually enter the substantive examination process, It's not something you can control. It could happen in a few years.