<!DOCTYPE html>
<html>

  <head>
    <link rel="stylesheet" href="style.css">
     <script src="//ajax.googleapis.com/ajax/libs/angularjs/1.4.0-beta.6/angular.min.js"></script>
    <script src="script.js"></script>
  </head>

  <body ng-app="services">
    <h1>Example 4 Defining Mutliple Methods in One Factory</h1>
    <div id="simple" ng-controller="MainController">
      <span><button ng-click="timeFromUTCDateHHMM(date)">timeFromUTCDateHHMM:: </button>{{timeFromUTCDateHHMMValue}}</span><br>
      <span><button ng-click="timeFromUTCDateHHMMSS(date)">timeFromUTCDateHHMMSS:: </button>{{timeFromUTCDateHHMMSSValue}}</span><br>
    </div>
  </body>

</html>
(function(angular) {
  'use strict';
   angular.
   module('services', [])
		.factory('processTime', ["$filter", function ($filter) {

			var timeFromUTCDateHHMM = function(dateObj)
			{
				var utcDate = new Date(dateObj);
				var convertedTime;
				convertedTime = $filter('date')(utcDate, "hh:mm");
				console.log("processTime:: UTC Date:: "+utcDate+" :: Converted Date::"+ convertedTime);
				return convertedTime;
			};
			var timeFromUTCDateHHMMSS = function(dateObj)
			{
				var utcDate = new Date(dateObj);
				var convertedTime;
				convertedTime = $filter('date')(utcDate, "HH:mm:ss");
				console.log("processTime:: UTC Date:: "+utcDate+" :: Converted Date::"+ convertedTime);
				return convertedTime;
			}

			return {
				timeFromUTCDateHHMM : timeFromUTCDateHHMM,
				timeFromUTCDateHHMMSS: timeFromUTCDateHHMMSS
			};
		}])
  .controller('MainController', ["$scope", "$rootScope", "$filter", "processTime", function ($scope, $rootScope, $filter,processTime) {
		console.log('---------- Controller ----------');
		 $scope.timeFromUTCDateHHMMValue = undefined;
		 $scope.timeFromUTCDateHHMMSSValue = undefined;
		 
		 $scope.timeFromUTCDateHHMM = function(dte){
		   $scope.timeFromUTCDateHHMMValue = processTime.timeFromUTCDateHHMM(dte);
		   console.log("Oringal Date:: "+dte+" Converted Date:: "+$scope.timeFromUTCDateHHMMValue);
		 };
		 
		 $scope.timeFromUTCDateHHMMSS = function(dte){
		   $scope.timeFromUTCDateHHMMSSValue = processTime.timeFromUTCDateHHMMSS(dte);
		   console.log("Oringal Date:: "+dte+" Converted Date:: "+$scope.timeFromUTCDateHHMMSSValue);
		 };
		 
		 $scope.init = function(){
		   $scope.date = new Date();
	     console.log("init::Today's Date::"+$scope.date);
		 };
		 
		 $scope.init();
		 
	}]);
	})(window.angular);
/* Styles go here */

AnuglarJS Example for:
Multiple methods in a One Factory
Hit the Buttons to show the results.

Structure for Factory

angular.module('services', [])



.factory('factoryName', ["$filter",

      function($filter) {
        var method1Logic = function(args) {
          //code
        };

        var method2Logic = function(args) {
         //code
        };

        return {
          method1: method1Logic,
          method2: method1Logic
        };
      }
    ])
.controller('MainController', 
  ["$scope", "$rootScope", "$filter", "factoryName", 
  function ($scope, $rootScope, $filter,factoryName) {
		
		 $scope.testMethod1 = function(arg){
		   $scope.val1 = factoryName.method1(arg);
		 };
		 
		 $scope.testMethod2 = function(arg){
		   $scope.val2 = factoryName.method2(arg);
		 };
	}]);