diff --git a/angular_app/events-list.html b/angular_app/events-list.html
index f745c93..f3ccd2d 100644
--- a/angular_app/events-list.html
+++ b/angular_app/events-list.html
@@ -19,8 +19,8 @@
                     <select id="events-order" class="form-control" ng-model="eventsOrderProp">
                         <option value="title">{{'Title' | translate}}</option>
                         <option value="-title">{{'Title (descending)' | translate}}</option>
-                        <option value="'begin-date'">{{'Date' | translate}}</option>
-                        <option value="'-begin-date'">{{'Date (descending)' | translate}}</option>
+                        <option value="begin_date">{{'Date' | translate}}</option>
+                        <option value="-begin_date">{{'Date (descending)' | translate}}</option>
                     </select>
                 </div>
             </form>
diff --git a/angular_app/js/controllers.js b/angular_app/js/controllers.js
index 9032eec..67a6be0 100644
--- a/angular_app/js/controllers.js
+++ b/angular_app/js/controllers.js
@@ -66,7 +66,7 @@ eventManControllers.controller('EventsListCtrl', ['$scope', 'Event', '$modal', '
     function ($scope, Event, $modal, $log, $translate, $rootScope) {
         $scope.events = Event.all();
         $scope.personsOrderProp = 'name';
-        $scope.eventsOrderProp = "'-begin-date'";
+        $scope.eventsOrderProp = "-begin_date";
 
         $scope.confirm_delete = 'Do you really want to delete this event?';
         $rootScope.$on('$translateChangeSuccess', function () {
@@ -402,7 +402,7 @@ eventManControllers.controller('PersonsListCtrl', ['$scope', 'Person', 'Setting'
 eventManControllers.controller('PersonDetailsCtrl', ['$scope', '$stateParams', 'Person', 'Event', 'Setting', '$log',
     function ($scope, $stateParams, Person, Event, Setting, $log) {
         $scope.personsOrderProp = 'name';
-        $scope.eventsOrderProp = '-begin-date';
+        $scope.eventsOrderProp = '-begin_date';
         $scope.addToEvent = '';
         $scope.customFields = Setting.query({setting: 'person_custom_field',
             in_persons_list: true});
diff --git a/angular_app/js/services.js b/angular_app/js/services.js
index d544827..547c767 100644
--- a/angular_app/js/services.js
+++ b/angular_app/js/services.js
@@ -4,6 +4,18 @@
 var eventManServices = angular.module('eventManServices', ['ngResource']);
 
 
+/* Modify, in place, an object to convert datetime. */
+function convert_dates(obj) {
+    if (obj['begin-date']) {
+        obj['begin-date'] = obj['begin_date'] = obj['begin-date'].getTime();
+    }
+    if (obj['end-date']) {
+        obj['end-date'] = obj['end_date'] = obj['end-date'].getTime();
+    }
+    return obj;
+}
+
+
 eventManServices.factory('Event', ['$resource', '$rootScope',
     function($resource, $rootScope) {
         return $resource('events/:id', {id: '@_id', person_id: '@person_id'}, {
@@ -12,19 +24,18 @@ eventManServices.factory('Event', ['$resource', '$rootScope',
                 method: 'GET',
                 isArray: true,
                 transformResponse: function(data, headers) {
-                    return angular.fromJson(data).events;
+                    data = angular.fromJson(data);
+                    angular.forEach(data.events || [], function(event_, event_idx) {
+                        convert_dates(event_);
+                    });
+                    return data.events;
                 }
             },
 
             get: {method: 'GET',
                 transformResponse: function(data, headers) {
                     data = angular.fromJson(data);
-                    if (data && data['begin-datetime']) {
-                        data['begin-date'] = data['begin-date'].getTime();
-                    }
-                    if (data && data['end-datetime']) {
-                        data['end-date'] = data['end-date'].getTime();
-                    }
+                    convert_dates(data);
                     // strip empty keys.
                     angular.forEach(data.persons || [], function(person, person_idx) {
                         angular.forEach(person, function(value, key) {
@@ -92,34 +103,11 @@ eventManServices.factory('Person', ['$resource',
                 url: 'persons/:_id/events',
                 isArray: true,
                 transformResponse: function(data, headers) {
-                    return angular.fromJson(data).events;
-                }
-            }
-        });
-    }]
-);
-
-
-eventManServices.factory('Person', ['$resource',
-    function($resource) {
-        return $resource('persons/:id', {id: '@_id'}, {
-
-            all: {
-                method: 'GET',
-                isArray: true,
-                transformResponse: function(data, headers) {
-                    return angular.fromJson(data).persons;
-                }
-            },
-
-            update: {method: 'PUT'},
-
-            getEvents: {
-                method: 'GET',
-                url: 'persons/:_id/events',
-                isArray: true,
-                transformResponse: function(data, headers) {
-                    return angular.fromJson(data).events;
+                    data = angular.fromJson(data);
+                    angular.forEach(data.events || [], function(event_, event_idx) {
+                        convert_dates(event_);
+                    });
+                    return data.events;
                 }
             }
         });
diff --git a/angular_app/person-info.html b/angular_app/person-info.html
index f4e62f4..f1579c1 100644
--- a/angular_app/person-info.html
+++ b/angular_app/person-info.html
@@ -19,8 +19,8 @@
                     <select id="events-order" class="form-control" ng-model="eventsOrderProp">
                         <option value="title">{{'Title' | translate}}</option>
                         <option value="-title">{{'Title (descending)' | translate}}</option>
-                        <option value="begin-date">{{'Date' | translate}}</option>
-                        <option value="-begin-date">{{'Date (descending)' | translate}}</option>
+                        <option value="begin_date">{{'Date' | translate}}</option>
+                        <option value="-begin_date">{{'Date (descending)' | translate}}</option>
                     </select>
                 </div>
             </form>