Yes, it's absolutely free of charge. You are free to use it and get basic technical supports from wisecleaner.com.
The set time format. Please look at the following screenshot carefully. The time format includes 12 hours + PM and AM, so you have to pay particular attention to PM and AM.
Wise Auto Shutdown supports five types of tasks. You can shut down, log off, sleep, power off and restart your computer automatically by it.
There are three different ways for you to set the task execution time. Set it daily, at a specific time or some time later.