How to use format() on a moment.js duration?

Is there any way I can use the moment.js format method on duration objects? I can’t find it anywhere in the docs and it doesn’t seen to be an attribute on duration objects. I’d like to be able to do something like: var diff = moment(end).unix() – moment(start).unix(); moment.duration(diff).format(‘hh:mm:ss’) Also, if there are any other … Read more