thanks. I've looked at the material widget and the basic date/time picker in jquery. I've also looked around for sourcecode for a similar widget but I haven't found any.
The time thing is a good question. Base precision would be to minutes. The problem with two sliders would be for the minute one. The slider is also supposed to move the position of an object over time, so with the jump from like 3:59 to 4:00 would require the user to increase the hour slider by one, but go all the way back to the start of the second slider