diff --git a/src/pocketmine/utils/Timezone.php b/src/pocketmine/utils/Timezone.php
index 4c7e29c1d..d6ef2dc3c 100644
--- a/src/pocketmine/utils/Timezone.php
+++ b/src/pocketmine/utils/Timezone.php
@@ -203,6 +203,9 @@ abstract class Timezone{
 		}
 
 		$parsed = date_parse($offset);
+		if($parsed === false){
+			return false;
+		}
 		$offset = $parsed['hour'] * 3600 + $parsed['minute'] * 60 + $parsed['second'];
 
 		//After date_parse is done, put the sign back