Set Shutdown time in your Computer

Sometimes when you are downloading or doing other thing and you need to go out for some reason but you can't turn off the PC.Then you can set a shutdown time. You can do it with very simple steps. 

• First, go to Run(Windows Key+R)
• than write shutdown /s /t 20

• Here t 20 means 20 seconds. So the computer will shut down after 20 seconds.
• If you want to turn off your PC after 2 and half hours(2 hours and 30 minutes) , instead of t 20 just write 9240 (2*60*60+30*60=7440+1800=9240)

• And click ok. Your PC will shut down after 2.30 hours.