diff --git a/ang/crmMailing/RadioDate.js b/ang/crmMailing/RadioDate.js
index 8be382e3d87a..153e9562b930 100644
--- a/ang/crmMailing/RadioDate.js
+++ b/ang/crmMailing/RadioDate.js
@@ -1,7 +1,7 @@
 (function(angular, $, _) {
   // Represent a datetime field as if it were a radio ('schedule.mode') and a datetime ('schedule.datetime').
   // example: <div crm-mailing-radio-date="mySchedule" ng-model="mailing.scheduled_date">...</div>
-  angular.module('crmMailing').directive('crmMailingRadioDate', function() {
+  angular.module('crmMailing').directive('crmMailingRadioDate', function(crmUiAlert) {
     return {
       require: 'ngModel',
       link: function($scope, element, attrs, ngModel) {
@@ -48,6 +48,26 @@
             if (context === 'userInput' && $(this).val() === '' && $(this).siblings('.crm-form-date').val().length) {
               schedule.mode = 'at';
               schedule.datetime = '?';
+            } else { 
+              var d = new Date(),
+              month = '' + (d.getMonth() + 1),
+              day = '' + d.getDate(),
+              year = d.getFullYear(),
+              hours = '' + d.getHours(),
+              minutes = '' + d.getMinutes();
+              var submittedDate = $(this).val();
+              if (month.length < 2) month = '0' + month;
+              if (day.length < 2) day = '0' + day;
+              date = [year, month, day].join('-');
+              time = [hours, minutes, "00"].join(':');
+              currentDate = date + ' ' + time;
+              ngModel.$setValidity('dateTimeInThePast', !($(this).val().length && submittedDate < currentDate));
+              if ($(this).val().length && submittedDate < currentDate) {
+                crmUiAlert({
+                  text: ts('The scheduled date and time is in the past'),
+                  title: ts('Error')
+                });
+              }
             }
           });
 
diff --git a/tests/karma/unit/crmMailingRadioDateSpec.js b/tests/karma/unit/crmMailingRadioDateSpec.js
index a90a820f6bb2..4ffee0cc6d7e 100644
--- a/tests/karma/unit/crmMailingRadioDateSpec.js
+++ b/tests/karma/unit/crmMailingRadioDateSpec.js
@@ -80,11 +80,31 @@ describe('crmMailingRadioDate', function() {
 
       model.the_date = '2014-01-02 02:03:00';
       $rootScope.$digest();
-      expect($rootScope.myForm.$valid).toBe(true);
+      expect($rootScope.myForm.$valid).toBe(false);
       expect(element.find('.radio-now').prop('checked')).toBe(false);
       expect(element.find('.radio-at').prop('checked')).toBe(true);
       expect(element.find('.crm-form-date').datepicker('getDate').toDateString()).toEqual('Thu Jan 02 2014');
       expect(element.find('.crm-form-time').timeEntry('getTime').getMinutes()).toBe(3);
+
+      var now = new Date();
+      now.setDate(now.getDate() + 1);
+      var month = '' + (now.getMonth() + 1);
+      var day = '' + now.getDate();
+      var year = now.getFullYear();
+      var hours = '' + now.getHours();
+      var minutes = '' + now.getMinutes();
+      if (month.length < 2) month = '0' + month;
+      if (day.length < 2) day = '0' + day;
+      var datenow = [year, month, day].join('-');
+      var time = [hours, minutes, "00"].join(':');
+      var currentDate = datenow + ' ' + time;
+      var n = now.toDateString();
+      model.the_date = currentDate;
+      $rootScope.$digest();
+      expect($rootScope.myForm.$valid).toBe(true);
+      expect(element.find('.radio-now').prop('checked')).toBe(false);
+      expect(element.find('.radio-at').prop('checked')).toBe(true);
+      expect(element.find('.crm-form-date').datepicker('getDate').toDateString()).toEqual(n);
     });
 
     it('should update the model after changing the date and time', function() {
@@ -107,7 +127,7 @@ describe('crmMailingRadioDate', function() {
       element.find('.crm-form-time').timeEntry('setTime', '04:05').trigger('change');
       $rootScope.$digest();
       expect(model.the_date).toBe('2014-01-03 04:05:00');
-      expect($rootScope.myForm.$valid).toBe(true);
+      expect($rootScope.myForm.$valid).toBe(false);
       expect(element.find('.radio-now').prop('checked')).toBe(false);
       expect(element.find('.radio-at').prop('checked')).toBe(true);