Fixed #3748

CHANGELOG-v3.md

@@ -1,5 +1,10 @@
 # Release Notes for Craft CMS 3.x
 
+## Unreleased
+
+### Fixed
+- Fixed an error that occured when creating a Table field with a Date column. ([#3748](https://github.com/craftcms/cms/issues/3748))
+
 ## 3.1.6 - 2019-01-29
 
 ### Added

src/helpers/DateTimeHelper.php

@@ -91,7 +91,7 @@ class DateTimeHelper
      *      - `timezone` – A [valid PHP timezone](http://php.net/manual/en/timezones.php). If set, this will override
      *        the assumed timezone per `$assumeSystemTimeZone`.
      *
-     * @param mixed $value The value that should be converted to a DateTime object.
+     * @param string|int|array|null $value The value that should be converted to a DateTime object.
      * @param bool $assumeSystemTimeZone Whether it should be assumed that the value was set in the system timezone if
      * the timezone was not specified. If this is `false`, UTC will be assumed.
      * @param bool $setToSystemTimeZone Whether to set the resulting DateTime object to the system timezone.
@@ -104,6 +104,10 @@ public static function toDateTime($value, bool $assumeSystemTimeZone = false, bo
             return $value;
         }
 
+        if (!$value) {
+            return false;
+        }
+
         $defaultTimeZone = ($assumeSystemTimeZone ? Craft::$app->getTimeZone() : 'UTC');
 
         if (is_array($value)) {