diff --git a/vendor/magento/module-customer/Block/Widget/Dob.php b/vendor/magento/module-customer/Block/Widget/Dob.php
index e020de79a3a..90ce9ba210e 100644
--- a/vendor/magento/module-customer/Block/Widget/Dob.php
+++ b/vendor/magento/module-customer/Block/Widget/Dob.php
@@ -9,7 +9,7 @@ use Magento\Customer\Api\CustomerMetadataInterface;
 use Magento\Framework\Api\ArrayObjectSearch;
 
 /**
- * Class Dob
+ * Customer date of birth attribute block
  *
  * @SuppressWarnings(PHPMD.DepthOfInheritance)
  */
@@ -267,7 +267,9 @@ class Dob extends AbstractWidget
         $validators['validate-date'] = [
             'dateFormat' => $this->getDateFormat()
         ];
-        $validators['validate-dob'] = true;
+        $validators['validate-dob'] = [
+            'dateFormat' => $this->getDateFormat()
+        ];
 
         return 'data-validate="' . $this->_escaper->escapeHtml(json_encode($validators)) . '"';
     }
diff --git a/vendor/magento/module-customer/view/frontend/web/js/validation.js b/vendor/magento/module-customer/view/frontend/web/js/validation.js
index 67a71421202..1f7f24d5ac0 100644
--- a/vendor/magento/module-customer/view/frontend/web/js/validation.js
+++ b/vendor/magento/module-customer/view/frontend/web/js/validation.js
@@ -1,19 +1,23 @@
 define([
     'jquery',
     'moment',
+    'mageUtils',
     'jquery/validate',
+    'validation',
     'mage/translate'
-], function ($, moment) {
+], function ($, moment, utils) {
     'use strict';
 
     $.validator.addMethod(
         'validate-dob',
-        function (value) {
+        function (value, element, params) {
+            var dateFormat = utils.convertToMomentFormat(params.dateFormat);
+
             if (value === '') {
                 return true;
             }
 
-            return moment(value).isBefore(moment());
+            return moment(value, dateFormat).isBefore(moment());
         },
         $.mage.__('The Date of Birth should not be greater than today.')
     );
diff --git a/vendor/magento/module-ui/view/base/web/js/lib/validation/rules.js b/vendor/magento/module-ui/view/base/web/js/lib/validation/rules.js
index 08f67955976..6aaedf47511 100644
--- a/vendor/magento/module-ui/view/base/web/js/lib/validation/rules.js
+++ b/vendor/magento/module-ui/view/base/web/js/lib/validation/rules.js
@@ -1069,12 +1069,12 @@ define([
             $.mage.__('This link is not allowed.')
         ],
         'validate-dob': [
-            function (value) {
+            function (value, param, params) {
                 if (value === '') {
                     return true;
                 }
 
-                return moment(value).isBefore(moment());
+                return moment.utc(value, params.dateFormat).isSameOrBefore(moment.utc());
             },
             $.mage.__('The Date of Birth should not be greater than today.')
         ]
diff --git a/lib/web/mage/validation.js b/lib/web/mage/validation.js
index 51c23a9b28c..4b7b2b34e2b 100644
--- a/lib/web/mage/validation.js
+++ b/lib/web/mage/validation.js
@@ -6,10 +6,11 @@
 define([
     'jquery',
     'moment',
+    'mageUtils',
     'jquery-ui-modules/widget',
     'jquery/validate',
     'mage/translate'
-], function ($, moment) {
+], function ($, moment, utils) {
     'use strict';
 
     var creditCartTypes, rules, showLabel, originValidateDelegate;
@@ -1032,7 +1033,7 @@ define([
         ],
         'validate-date': [
             function (value, params, additionalParams) {
-                var test = moment(value, additionalParams.dateFormat);
+                var test = moment(value, utils.convertToMomentFormat(additionalParams.dateFormat));
 
                 return $.mage.isEmptyNoTrim(value) || test.isValid();
             },