How to convert date to required format in angular-gantt?

Question

Angular

Hello!
I am using angular chart-gantt demo
Here the dates are formatted, in my case the dates are displayed as: "2016-03-18T21:00:00.000Z"
I am using moment("2016-03-18T21:00:00.000Z").format( "dd-mm-yyyy");
everything hangs and the page falls. There is a link .
It shows how to use moment.js correctly.
But otherwise I have one result of the format: "2016-03-18T21:00:00.000Z"
How to correctly determine the date here?
Thank you!