AutoOff allows you to automatically shutdown your device at a set time. You can schedule the timer either in minutes until shutdown or set the exact time of shutdown. Furthermore you can set the timer to automatically start on boot.
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C4 for Mac Alternatives
C4 for Mac is described as 'An extremely simple and lightweight app that puts your Mac to sleep at a specified time' and is an app in the os & utilities category. There are more than 25 alternatives to C4 for Mac for Windows, Linux, Android, Mac and Launchpad. The best C4 for Mac alternative is AMP WinOFF, which is free. Other great apps like C4 for Mac are Airytec Switch Off, Shutter Utility, Sleepr and Wise Auto Shutdown.