diff --git a/js/angular-material-datetimepicker.js b/js/angular-material-datetimepicker.js
index 32bc8b3..4c6ff88 100644
--- a/js/angular-material-datetimepicker.js
+++ b/js/angular-material-datetimepicker.js
@@ -216,6 +216,13 @@
               ngModel.$parsers.push(function (value) {
                 if (typeof value === 'undefined') return;
                 var m = moment(value, scope.format);
+                if (scope.minDate) {
+                  ngModel.$setValidity('min', !m.isBefore(scope.minDate));   
+                }
+                if(scope.maxDate)                {
+                  ngModel.$setValidity('max', !m.isAfter(scope.maxDate));
+                }
+                
                 return m.isValid() ? m.toDate() : '';
               });