diff --git a/lib/Resque/Worker.php b/lib/Resque/Worker.php
index 656ddd6..0ffe79c 100644
--- a/lib/Resque/Worker.php
+++ b/lib/Resque/Worker.php
@@ -454,7 +454,7 @@ public function workerPids()
 	public function registerWorker()
 	{
 		Resque::redis()->sadd('workers', (string)$this);
-		Resque::redis()->set('worker:' . (string)$this . ':started', strftime('%a %b %d %H:%M:%S %Z %Y'));
+		Resque::redis()->set('worker:' . (string)$this . ':started', date('c'));
 	}
 
 	/**