This is definitely something I would use. I hate messing with date/time. Timezones, zillions of different date formats, etc. all make dates and times a pain. A slick "Stripe-like" way to handle all of that would be awesome.
I'm considering building something like this. Just to be clear, is converting user input into timestamps part of the problem (and if so, do libraries like http://momentjs.com address it)? Or are you strictly referring to the scheduling aspect of it?
