<?php
header("Content-type: text/html; charset=utf-8");
date_default_timezone_set("Asia/Tokyo");
echo "HH:MM::SS形式<br>";
echo date("H:i:s") . "<br><br>";
echo "H:MM:SS形式<br>";
echo date("G:i:s") . "<br><br>";
echo "12時間形式<br>";
echo date("A h時i分s秒") . "<br>";
echo date("a g時i文s秒");
?>