diff --git a/install/lib/install.lib.php b/install/lib/install.lib.php
index 30ba04ea1110d938a5a57ab0dd2dad8398a4d726..eac79e9872d241e53e29028ff425ab9de6bcb773 100644
--- a/install/lib/install.lib.php
+++ b/install/lib/install.lib.php
@@ -811,6 +811,8 @@ function get_system_timezone() {
 		exec('date +%Z', $tzinfo);
 		$timezone = $tzinfo[0];
 	}
+	
+	if(substr($timezone, 0, 1) === '/') $timezone = substr($timezone, 1);
 
 	return $timezone;
 }