Application to auto-shutdown within stated minutes

[BatteryLife]

Hi, this is an extremely off-topic thread, which is why I posted here.

I have a laptop running Windows 7, and sometimes I need to shutdown my computer automatically after some time, eg. 3 hours.

Thus, I made some preset scripts, and I just have to double click them, the script is shown below. (Don't know much about this, not written by me)

strCmd = "shutdown -s -t 10800" set objShell = CreateObject("WScript.Shell") objShell.Run strCmd

The problem starts here,

1) The time I need it to shutdown is not fixed, and it is quite troublesome to edit it everytime I want to shutdown my computer.
2) The time is in seconds, not minutes, so I have to use a calculator xP.

tl;dr? Is there anyone who can guide me, or can create some app that once launched, will ask me for the amount of minutes before it auto forces shutdown?

 

[Checki]

Why don't you make several scripts with different times? And use your brain! Something divides by 60 is not a big deal...lazy ppl sometimes...

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[BatteryLife]

And cram up your entire desktop with scripts, thanks amazing idea. And how could I not have thought of that? Your sarcasm is not appreciated btw.

Why buy a fridge? Just keep your food in a cooler box and replace the ice every day? Lazy people sometimes.

 

[Checki]

I guess its a .bat file. Right click - edit - change time - save. 10 seconds "work".

And I just googled for "shutdown timer" and found quite a few. Did you ever try that?

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