diff --git a/app/Rules/DateYMD.php b/app/Rules/DateYMD.php
index eb39492..8c5a84a 100644
--- a/app/Rules/DateYMD.php
+++ b/app/Rules/DateYMD.php
@@ -20,5 +20,10 @@ public function validate(string $attribute, mixed $value, Closure $fail): void
         if (\DateTimeImmutable::createFromFormat("Y-m-d", $value) === false) {
             $fail('validation.format.date_ymd');
         }
+        // DateTime accept dates such as 2021-31-55
+        $errors = \DateTimeImmutable::getLastErrors();
+        if (!empty($errors['warning_count'])) {
+            $fail('validation.date_ymdhi');
+        }
     }
 }
diff --git a/app/Rules/DateYMDHI.php b/app/Rules/DateYMDHI.php
index ecb40f4..c8f3692 100644
--- a/app/Rules/DateYMDHI.php
+++ b/app/Rules/DateYMDHI.php
@@ -20,5 +20,10 @@ public function validate(string $attribute, mixed $value, Closure $fail): void
         if (\DateTimeImmutable::createFromFormat("Y-m-d H:i:s", $value . ":00") === false) {
             $fail('validation.date_ymdhi');
         }
+        // DateTime accept dates such as 2021-31-55
+        $errors = \DateTimeImmutable::getLastErrors();
+        if (!empty($errors['warning_count'])) {
+            $fail('validation.date_ymdhi');
+        }
     }
 }
diff --git a/app/Rules/DateYMDHIS.php b/app/Rules/DateYMDHIS.php
index 1cf2aea..8a1da08 100644
--- a/app/Rules/DateYMDHIS.php
+++ b/app/Rules/DateYMDHIS.php
@@ -20,5 +20,10 @@ public function validate(string $attribute, mixed $value, Closure $fail): void
         if (\DateTimeImmutable::createFromFormat("Y-m-d H:i:s", $value) === false) {
             $fail('validation.date_ymdhis');
         }
+        // DateTime accept dates such as 2021-31-55
+        $errors = \DateTimeImmutable::getLastErrors();
+        if (!empty($errors['warning_count'])) {
+            $fail('validation.date_ymdhi');
+        }
     }
 }