Automatic shutdown and restart after 3 hours

Hello,

I have a computer which runs all the time i.e 24x7. Is there any way I can schedule computer to shutdown automatically on Sunday evenings for 3 hours and then restart on it's own?

If there is a way to do it, please let me know. I want whole shutdown, rest for 3 hours and restart to be automatic.

Thanks
Sach

I know some bios have an option to power up a PC at a set time , it's under power options , usually named 'resume by alarm' or some such thing.

You can schedule an auto-shutdown using the task scheduler , someone produced a youtube vid showing how it was done here , probably easier than me explaining it https://www.youtube.com/watch?v=T2RwocqWpcE , turn the sound off..the backing music is quite loud...

Thanks for links and info. I'll try settings in bios.