Different publications have different time. The more popular they are, the longer they are, one or two months faster and one or two years slower. But it's easy to find papers online now ~
The speed varies greatly. You will be informed of the modification or employment in about one month, and the modification opinions will be given in more than three months. Of course, the rejection is quite efficient on the whole, usually one week to one month, so it won't waste too much time; The release time is from 1 to 2 years.
Generally, papers will be published about two months after they are received, and about half a year after they are submitted to the university.