How to find out how long a PC has been left turned on

If you work as a Sys Admin, Tech Support or at the Help desk you probably asked a client, "How long has the PC been left on?" I am one of those guys that gets tired of asking the same question when there is an easier way to get an answer. In this video I will go over a few ways to get that answer. We will wade into the topic with CMD scripting. Then we will progress into the hybrid stage of intermediate to "Are you freaking kidding me?" Finally diving into the deep end with bash scripting in Ultramarine Linux. I may use slightly colorful language but the intent is clear. Hopefully this will be something you can use in your work and projects. Enjoy.