[robinson7d]

It's not a particularly great wrapper (I've had to handle a couple minor issues in a further wrapper directive), but for the two-pickers situation where you want a range, I've recently used https://github.com/fragaria/angular-daterangepicker

Which is itself just a directive wrapper around Dan Grossman's DateRange Picker for Bootstrap https://github.com/dangrossman/bootstrap-daterangepicker

Of course, those have a lot of dependencies, so if the app isn't using bootstrap/moment/etc. it isn't as useful.