javascript - Add time to date with angular -

in firebase have:

firebase generated date created day.  terms set user when above generated.  

so example have:

1439612582756 // formats to: aug 14, 2015  15 // formats to: "net 15" in code  

my code looks this:

<td>{{invoice.settings.created | date}}</td>  <td>{{invoice.settings.created + invoice.settings.terms | date}}</td> 

i have installed moment.js , 'angular-moment.js' able format , play dates, didn't see way add time date. for-each don't want have pre-scripting this. maybe custom filter add terms date?

obviously, code above not function. made demonstrate wanting.

any appreciated!

update

using page: http://momentjs.com/docs/#/durations/add/ came filter:

.filter('dateterms', function() {     return function(created, terms) {         var = moment.duration(created, 'd');         var b = moment.duration(terms, 'd');         return a.add(b).days();     } }) 

but when call it, end 0?

<td>{{invoice.settings.created | date}}</td> <td>{{invoice.settings.terms | dateterms}}</td> // line 

i'm guessing it's because i'm passing filter terms , not created date. how pass 2 variables? think i'm getting closer....

update 2

i dumped moments crap. have now:

.filter('dateterms', function() {     return function(input, created) {         var date = new date(created*1000);         date.setdate(date.getdate() + input);         return (date.getmonth()+1)+'/'+ date.getdate() +'/'+date.getfullyear();     } }) 

and in html:

<td>{{invoice.settings.terms | dateterms:1439746291480}}</td>  1439746291480 converts `aug 16, 2015` 

this results in:

8/24/47601 

using method chaining moment.js, can perform these kind of calculations in single statement. example:

return moment(new date(created)).add(terms, 'days').format('mm/dd/yyyy'); 

using moment.js make life easier in other ways, since automatically deals daylight savings, leap years, time zones, etc., making of date , time calculations more accurate.