我的倒计时结束于特定的时间和日期 是否可以设置倒计时的开始日期?
开始:2018年6月14日15:00:00
结束:2018年6月17日23:59:59
v3.1.2
// Set the date we're counting down to
var countDownDate = new Date("June 17, 2018 23:59:59").getTime();
// Update the count down every 1 second
var x = setInterval(function() {
// Get todays date and time
var now = new Date().getTime();
// Find the distance between now an the count down date
var distance = countDownDate - now;
// Time calculations for days, hours, minutes and seconds
var days = Math.floor(distance / (1000 * 60 * 60 * 24));
var hours = Math.floor((distance % (1000 * 60 * 60 * 24)) / (1000 * 60 * 60));
var minutes = Math.floor((distance % (1000 * 60 * 60)) / (1000 * 60));
var seconds = Math.floor((distance % (1000 * 60)) / 1000);
// Output the result in an element with id="demo"
document.getElementById("countdown").innerHTML = "TEXT Countdown" + days + " days, " + hours + " h, "
+ minutes + " min & " + seconds + " sec";
// If the count down is over, write some text
if (distance < 0) {
clearInterval(x);
document.getElementById("countdown").innerHTML = "TEXT after countdown";
}
}, 1000);
答案 0 :(得分:0)
将呼叫延迟到setInterval
,直到您想要的时间。你最好的选择,因为计时器在非活动标签上被限制,是定期检查,然后在时间到来时启动:
var waitingTimer = setInterval(function() {
if (Date.now() < Date.parse("2018-06-14T15:00:00")) {
return;
}
clearInterval(waitingTimer);
// ...start the countdown
}, 1000);
您可能希望以UTC表示时间,因为遗憾的是,如果没有时区指示符更改(两次),这些字符串意味着什么,而如果您将时间设置为UTC并在字符串中添加Z
,它很可靠。