diff --git a/src/PortAbstract.php b/src/PortAbstract.php
index 90241be4..0c0096c8 100644
--- a/src/PortAbstract.php
+++ b/src/PortAbstract.php
@@ -190,9 +190,12 @@ function verify($transaction)
 
 	function getTimeId()
 	{
-		$uid = time();
-		while ($this->getTable()->whereId($uid)->first())
-			$uid = time();
+		$genuid = function(){
+			return substr(str_pad(str_replace('.','', microtime(true)),12,0),0,12);
+		};
+		$uid=$genuid();
+		while (static::find($uid))
+			$uid = $genuid();
 		return $uid;
 	}