Question

我是java脚本的新手，我需要帮助来解决现在和今天晚上9点之间的时差（假设现在的时间不到晚上9点）。如果可能的话，我特别想要它，秒部分动态地改变/减少。 H：M S格式请。我很感激你的帮助

Answer 1

使用此： * Updated - With Days Hours Minutes and Seconds *

showDiff();

function showDiff(){
    var date1 = new Date();    
    var date2 = new Date("2015/07/30 21:59:00");
    //Customise date2 for your required future time

    var diff = (date2 - date1)/1000;
    var diff = Math.abs(Math.floor(diff));

    var days = Math.floor(diff/(24*60*60));
    var leftSec = diff - days * 24*60*60;

    var hrs = Math.floor(leftSec/(60*60));
    var leftSec = leftSec - hrs * 60*60;

    var min = Math.floor(leftSec/(60));
    var leftSec = leftSec - min * 60;

    document.getElementById("showTime").innerHTML = "You have " + days + " days " + hrs + " hours " + min + " minutes and " + leftSec + " seconds before death.";

setTimeout(showDiff,1000);
}

为您的HTML COde：

<div id="showTime"></div>

Answer 2

这是一些未经测试的代码，应该会在下午9:00之前为您提供小时和分钟

var hoursToday = 21; // the 9 in 9:00 PM
var minutesToday = 0; // the 00 in 9:00 PM

var d = new Date();
var hoursNow = d.getHours();
var minutesNow = d.getMinutes();

var hoursLeft = hoursToday - hoursNow;
var minutesLeft = minutesToday - minutesNow;

在javascript中计算当天和未来时间之间的时差

2 个答案: