javascript - 如何在 12 小时内检索当前的 `DateTime`？

Question

从 JavaScript 获取当前日期时间作为字符串的最佳方法是什么，格式如下:

11/5/2011 1:56:44 PM

而不是(24 小时/“军用”时间)

11/5/2011 13:56:44

Answer 1

演示:http://jsfiddle.net/k6g4g/

var date = new Date,
    day = date.getDate(),
    month = date.getMonth() + 1,
    year = date.getFullYear(),
    hour = date.getHours(),
    minute = date.getMinutes(),
    seconds = date.getSeconds(),
    ampm = hour > 12 ? "PM" : "AM";

hour = hour % 12;
hour = hour ? hour : 12; // zero = 12

minute = minute > 9 ? minute : "0" + minute;
seconds = seconds > 9 ? seconds : "0" + seconds;
hour = hour > 9 ? hour : "0" + hour;


date = month + "/" + day + "/" + year + " " + hour + ":" + minute + ":" + seconds + " " + ampm;
// date holds "12/16/2011 08:14:30 PM"