How to format a date-time column in ng-grid?

This is ng-grid date format

The code-sample as given below.

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angular.module('userApp', ['ngGrid']).controller('myCtrl', function ($scope) {   $scope.users = myData;    $scope.userColumns = [             { field: 'ContactName', displayName: 'User Name'},             { field: 'ContactEmail', displayName: 'Email' },             { field: 'ContactMobile', displayName: 'Mobile'},             { field: 'AlertOptIn', displayName: 'AlertOptIn'},             { field: 'LastUpdateBy', displayName: 'LastUpdateBy' },             { field: 'LastUpdateDate', displayName: 'LastUpdateDate', cellFilter: "date:'yyyy-MM-dd'}];   $scope.userGridView = {         data: 'users',         columnDefs: 'userColumns'            }; });

angular.module('userApp', ['ngGrid']).controller('myCtrl', function ($scope) { 
  $scope.users = myData;  
  $scope.userColumns = [
            { field: 'ContactName', displayName: 'User Name'},
            { field: 'ContactEmail', displayName: 'Email' },
            { field: 'ContactMobile', displayName: 'Mobile'},
            { field: 'AlertOptIn', displayName: 'AlertOptIn'},
            { field: 'LastUpdateBy', displayName: 'LastUpdateBy' },
            { field: 'LastUpdateDate', displayName: 'LastUpdateDate', 
cellFilter: "date:'yyyy-MM-dd'}];

  $scope.userGridView = {
        data: 'users',
        columnDefs: 'userColumns'        
    };
});