diff --git a/apps/files_trashbin/lib/Command/RestoreAllFiles.php b/apps/files_trashbin/lib/Command/RestoreAllFiles.php
index cd79f1e8def68..63ddb176ee050 100644
--- a/apps/files_trashbin/lib/Command/RestoreAllFiles.php
+++ b/apps/files_trashbin/lib/Command/RestoreAllFiles.php
@@ -101,13 +101,13 @@ protected function configure(): void {
 				'since',
 				null,
 				InputOption::VALUE_OPTIONAL,
-				'Only restore files deleted after the given timestamp'
+				'Only restore files deleted after the given date and time, see https://www.php.net/manual/en/function.strtotime.php for more information on supported formats'
 			)
 			->addOption(
 				'until',
 				null,
 				InputOption::VALUE_OPTIONAL,
-				'Only restore files deleted before the given timestamp'
+				'Only restore files deleted before the given date and time, see https://www.php.net/manual/en/function.strtotime.php for more information on supported formats'
 			)
 			->addOption(
 				'dry-run',