Thanks, bluebicycle, and everyone else who commented on my tart!

Well, I guess "hands on" prep it took about 40 minutes, but the whole process took much longer. The baking times (combined) took about 35 minutes. But then there were a couple long refrigerations needed (minumum 2 hours total), cooling times (almost 1 hour total), and in the very beginning the time it took for the butter and cream cheese to soften (about 30 minutes). I did some things while other things were cooling/chilling/baking. I guess one would need 3 or more hours from very start to ready to serve.