Moment js - displaying days and hours away from a date

I am working on a project that requires this kind of text response on a date object.

"1 day 7 hours away" --- it needs to be this way - not "31 hours away" or "1 day away" -- also I am using moment js - as I am doing language switching between English and German - so I've tapped into the moment.js language locale

moment.locale('de')

I am using moment js - currently I've created a fake date object

  var futureDate = new Date()
  futureDate.setDate(futureDate.getDate() + 1)// add a day
  futureDate.setHours(7)// add 7 hours

when I try and render the moment js

moment(futureDate).endOf('day').fromNow()

it just says "in a day"

How do I modify the moment function to handle 1 day 7 hours -- and maybe re-jig the sentence?

--- code snippet attempt

moment.locale('de') // switch between en and de -- english and german

var futureDate = new Date()
futureDate.setDate(futureDate.getDate() + 1)// add a day
futureDate.setHours(7)// add 4 hours

// Results in hours
console.log(moment(futureDate).endOf('day').fromNow()); 

<script src="//cdnjs.cloudflare.com/ajax/libs/moment.js/2.17.1/moment.min.js"></script>

code test 2 using difference

moment.locale('de') // switch between en and de -- english and german

var a = moment();
var b = moment(a).add(31, 'hours');

// Results in days
console.log(b.diff(a, 'days'));
console.log(b.diff(a, 'days', true)); 

<script src="//cdnjs.cloudflare.com/ajax/libs/moment.js/2.17.1/moment.min.js"></script>