diff --git a/php/epntap.php b/php/epntap.php
index f4110bd..67ba5bc 100644
--- a/php/epntap.php
+++ b/php/epntap.php
@@ -192,10 +192,10 @@ function createFilter($targetName, $productTypes, $timeMin, $timeMax) {
 		array_push($filter, "dataproduct_type IN ('" . join("', '", explode(';', $productTypes)) . "')");
 	}
 	if($timeMin) {
-		array_push($filter, "time_min >= " . dateToJD($timeMin));
+		array_push($filter, "time_max >= " . dateToJD($timeMin));
 	}
 	if($timeMax) {
-		array_push($filter, "time_max <= " . dateToJD($timeMax));
+		array_push($filter, "time_min <= " . dateToJD($timeMax));
 	}
 	return (count($filter) > 0 ? ' WHERE ' . join(' AND ', $filter) : '');
 }
--
libgit2 0.21.2