Download Free [REQUEST] I'm looking for an app that can record how long i'm at work, using Wi-Fi, GPS, or otherwise

As the title says, I'm chasing an app that I can "set and forget" that will record the times that i'm physically at work. My roster often changes at the last minute, and I want an app that can record when I arrive and leave so I don't have to think about it. I've tried a few apps, but they were clunky or messy.

Any apps you use that you'd heartily recommend, let me know!!

Thanks

Download link http://www.mannesoth.com/download/19/12964000/[REQUEST] I'm looking for an app that can record how long i'm at work, using Wi-Fi, GPS, or otherwise