Unix has a useful command named 'uptime'.  Of course, it tells you how long your computer has been running. 

Windows doesn't have that command per se though it does have various ways to get the same info.  But I don't want to use those, I just want 'uptime'.  I used to have a binary .exe that did that, but no more.

This workaround gets you pretty much there:

1. download PsTools.
2. from the zip, you could just run psinfo.  It gives you several pieces of information including the uptime.
3. or if you really want to be pedantic about it, create a one-line script with this command very carefully typed: 

echo @psinfo ^| find "Uptime:" > uptime.cmd

That should get you a one-line script that runs "psinfo", but only displays the uptime line.

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Furry cows moo and decompress.

Joo Janta 200 Mode

You know it's a bad deal with darkness is actually comforting.

The fear of the Dark stems from the uncertainty of not knowing what monsters might be lurking there.

The comfort of the dark comes into it when you, in fact, already know full well you're surrounded by monsters, and you'd just as soon have a few moments peace where you can forget about it before they eat you.

"Hello, Darkness, my old friend..."

The Joo Janta 200 Super-Chromatic Peril Sensitive Sunglasses have been designed to help people develop a relaxed attitude to danger. They follow the principle "what you don't know can't hurt you" and turn completely dark and opaque at the first sign of danger. This prevents you from seeing anything that might alarm you. This does, however, mean that you see absolutely nothing, including where you're going.-- Hitchhikers' Guide to the Galaxy

The ignorant and corrupt Congress's attempts to repeal the ACA could screw up my child's Medicare in time.  Meanwhile, Betsy DeVos's ignorance of what the IDEA act even is could eventually crystallize into a weakening or repeal of that law which would mean I'd have to depend on good ol' Missouri law makers to make sure my deaf, blind, autistic son receives an education.

Hello, Darkness, my old friend.  My good ol' cancerous, ever-growing Darkness friend.

Protip:  bottles of alcohol might make a good barter currency post-apocalypse.

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Furry cows moo and decompress.