In v6 I dropped moment as a required library since it is no longer recommended. Almost all of the functions in the picker make use of my custom DateTime class which extends the native Date object. You can read more about it on my blog.
Because I am simply extending the native date object, any returned values will still behave like a date object. Which means you don't need to adpot using DateTime in your project unless you want to. Once less library to worry about!