javascript - Round a timestamp to the nearest date -

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i need group bunch of items in web app date created.

each item has exact timestamp, e.g. 1417628530199. i'm using moment.js , "time now" feature convert these raw timestamps nice readable dates, e.g. 2 days ago. want use readable date header group of items created on same date.

the problem raw timestamps specific - 2 items created on same date minute apart each have unique timestamp. header 2 days ago first item underneath, header 2 days ago second item underneath, etc.

what's best way round raw timestamps nearest date, items created on same date have exact same timestamp , can grouped together?

try this:

date.prototype.formatdate = function() {    var yyyy = this.getfullyear().tostring();    var mm = (this.getmonth()+1).tostring();    var dd  = this.getdate().tostring();    return yyyy + (mm[1]?mm:"0"+mm[0]) + (dd[1]?dd:"0"+dd[0]);   };  var utcseconds = 1417903843000,     d = new date(0);  d.setutcseconds(math.round( utcseconds / 1000.0));  var mytime = (function(){         var thetime = moment(d.formatdate(), 'yyyymmdd').startof('day').fromnow();         if(thetime.match('hours ago')){             return 'today';         }         return thetime;     })();  alert( mytime );

http://jsfiddle.net/cdn5rvck/4/


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