Cyber Dimensions....

METHOD # 3

you can use a batch for that as well it makes it easier to use just run the batch and enter the time you want it to shutdown
shutdown.bat

Type Code:@echo off
title Scheduled Shutdown Batch Example by chacha1234
color A
echo
Enter Time To Shutdown (example 19:30)
set /p stime=
cls
at %stime% ""shutdown -s -t 00"" >nul
echo Your PC Will Auto Shutdown At %stime%
echo Press Any Key To Exit
pause >nul
exit