<?php

header("Content-type: text/css");

$h = localtime()[2];

if($h >= 9 and $h < 17) {
	
	$sheet = 't-day';

} elseif($h < 6 or $h > 20) {
	
	$sheet = 't-night';

} else {
	
	$sheet = 't-dawn-or-dusk';
}

echo '
/*
cache : '. session_cache_expire() .'
*/

';

echo file_get_contents($sheet . '.css');