Angular ng-repeat sorting object of objects - angularjs

Question

$scope.openingtimes= {
"1": {"id": 1, "day": 1, "name_of_day": "Pondělí", "open_from": "13:00", "open_to": "16:00"},
"5": {"id": 5, "day": 1, "name_of_day": "Pondělíadas", "open_from": "13:00", "open_to": "16:02"},
"7": {"id": 7, "day": 1, "name_of_day": "Pondělí", "open_from": "13:00", "open_to": "16:00"},
"9": {"id": 9, "day": 1, "name_of_day": "Pondělísf", "open_from": "13:00", "open_to": "16:00"},
"10": {"id": 10, "day": 1, "name_of_day": "Pondělí", "open_from": "13:00", "open_to": "16:00"},
"11": {"id": 11, "day": 1, "name_of_day": "Pondělí", "open_from": "13:00", "open_to": "16:00"},
"12": {"id": 12, "day": 1, "name_of_day": "Pondělí", "open_from": "13:02", "open_to": "16:00"},
"13": {"id": 13, "day": 1, "name_of_day": "Pondělí", "open_from": "13:00", "open_to": "16:00"}
};
problem with sorting because in view:
<div ng-repeat="time in openingTimes >
{{ time.id }}
</div>
Im getting this order: 1, 10, 11, 12, 13, 5, 7, 9 and this is ofcourse wrong. I can not change object it has to be same I know solution is make this:
$scope.openingtimes= {
1: {"id": 1, "day": 1, "name_of_day": "Pondělí", "open_from": "13:00", "open_to": "16:00"},
5: {"id": .....
but I can not do it. I tried something like:
<div ng-repeat="time in openingTimes | orderBy:'id*1'">
but it doesn't work. Doues anyone know how to make it sort like numbers? Thank you very much.

Answer 1

I finally found solution and it is how pankajparkar said filter like this:
app.filter('orderObjectBy', function() {
return function(items, field, reverse) {
var filtered = [];
angular.forEach(items, function(item) {
filtered.push(item);
});
filtered.sort(function (a, b) {
return (a[field] > b[field] ? 1 : -1);
});
if(reverse) filtered.reverse();
return filtered;
};
});
and VIEW:
<div ng-repeat="time in openingTimes | orderObjectBy:'id':false">
thanks for help!