How to set default value for filter panel
set the option to more than and value to 2 hours from the time link clicked.
this solution work by modify the menu URL,
//12%2F11%2F2018%200.00.00
$d = date("d", strtotime('-2 hour'));
$m = date("m", strtotime('-2 hour'));
$Y = date("Y", strtotime('-2 hour'));
$h = date("H", strtotime('-2 hour'));
$filter=$d."%2F".$m."%2F".$Y."%20".$h.".00.00";
$menuItem->setUrl("menu.php?q=(DT~morethan~".$filter."~date11");