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<!doctype html>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="Cache-Control" content="no-siteapp">
<meta http-equiv="Cache-Control" content="no-transform">
<meta name="applicable-device" content="pc,mobile">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>桌面时钟_在线极简时钟同步</title>
<meta name="keywords" content="桌面时钟,在线时钟,极简时钟,时钟同步">
<meta name="description" content="北京时间网提供桌面时钟，在线极简同步时钟。">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<style type="text/css">
a:link {
color: #FFF;
}
a:visited {
color: #FFF;
}
a:hover {
color: #F90;
}
a:active {
color: #FFF;
}
</style>
</head>
<body>
<p>
<style>
body {
background: #FFF
}
.clock {
position: absolute;
opacity: 1
}
.fill .clock {
left: 50%;
top: 50%
}
.centre {
position: absolute;
top: 50%;
left: 50%;
width: 0;
height: 0
}
.expand {
position: absolute;
top: 0;
left: 0;
transform: translate(-50%, -50%)
}
.anchor {
position: absolute;
top: 0;
left: 0;
width: 0;
height: 0
}
.element {
position: absolute;
top: 0;
left: 0
}
.round {
border-radius: 296px
}
.circle-1 {
background: #000;
width: 12px;
height: 12px
}
.circle-2 {
background: #fa9f22;
width: 8px;
height: 8px
}
.circle-3 {
background: #000;
width: 4px;
height: 4px
}
.second {
transform: rotate(180deg)
}
.minute {
transform: rotate(54deg)
}
.second-hand {
width: 2px;
height: 164px;
background: #fa9f22;
transform: translate(-50%, -100%) translateY(24px)
}
.hour {
transform: rotate(304.5deg)
}
.thin-hand {
width: 4px;
height: 50px;
background: #000;
transform: translate(-50%, -100%)
}
.fat-hand {
width: 10px;
height: 57px;
border-radius: 10px;
background: #000;
transform: translate(-50%, -100%) translateY(-18px)
}
.minute-hand {
height: 112px
}
.hour-text {
position: absolute;
font: 40px Hei, Helvetica, Arial, sans-serif;
color: #000;
transform: translate(-50%, -50%)
}
.hour-10 {
padding-left: .4ex
}
.hour-11 {
padding-left: .25ex
}
.minute-text {
position: absolute;
font: 12px Avenir Next, Helvetica, Arial, sans-serif;
color: #000;
transform: translate(-50%, -50%)
}
.minute-line {
background: #000;
width: 1px;
height: 9px;
transform: translate(-50%, -100%) translateY(-131px);
opacity: .34
}
</style>
</p>
<div class="fill">
<div class="reference"></div>
<div class="clock" id="utility-clock">
<div class="centre">
<div class="dynamic"></div>
<div class="expand round circle-1"></div>
<div class="anchor hour">
<div class="element thin-hand"></div>
<div class="element fat-hand"></div>
</div>
<div class="anchor minute">
<div class="element thin-hand"></div>
<div class="element fat-hand minute-hand"></div>
</div>
<div class="anchor second">
<div class="element second-hand"></div>
</div>
<div class="expand round circle-2"></div>
<div class="expand round circle-3"></div>
</div>
</div>
</div>
<script>
var clock = document.querySelector('#utility-clock')
utilityClock(clock)
if (clock.parentNode.classList.contains('fill')) autoResize(clock, 295 + 32)
function utilityClock(container) {
var dynamic = container.querySelector('.dynamic')
var hourElement = container.querySelector('.hour')
var minuteElement = container.querySelector('.minute')
var secondElement = container.querySelector('.second')
var minute = function (n) {
return n % 5 == 0 ? minuteText(n) : minuteLine(n)
}
var minuteText = function (n) {
var element = document.createElement('div')
element.className = 'minute-text'
element.innerHTML = (n < 10 ? '0' : '') + n
position(element, n / 60, 135)
dynamic.appendChild(element)
}
var minuteLine = function (n) {
var anchor = document.createElement('div')
anchor.className = 'anchor'
var element = document.createElement('div')
element.className = 'element minute-line'
rotate(anchor, n)
anchor.appendChild(element)
dynamic.appendChild(anchor)
}
var hour = function (n) {
var element = document.createElement('div')
element.className = 'hour-text hour-' + n
element.innerHTML = n
position(element, n / 12, 105)
dynamic.appendChild(element)
}
var position = function (element, phase, r) {
var theta = phase * 2 * Math.PI
element.style.top = (-r * Math.cos(theta)).toFixed(1) + 'px'
element.style.left = (r * Math.sin(theta)).toFixed(1) + 'px'
}
var rotate = function (element, second) {
element.style.transform = element.style.webkitTransform = 'rotate(' + (second * 6) + 'deg)'
}
var animate = function () {
var now = new Date()
var time = now.getHours() * 3600 +
now.getMinutes() * 60 +
now.getSeconds() * 1 +
now.getMilliseconds() / 1000
rotate(secondElement, time)
rotate(minuteElement, time / 60)
rotate(hourElement, time / 60 / 12)
requestAnimationFrame(animate)
}
for (var i = 1; i <= 60; i++) minute(i)
for (var i = 1; i <= 12; i++) hour(i)
animate()
}
function autoResize(element, nativeSize) {
var update = function () {
var scale = Math.min(window.innerWidth, window.innerHeight) / nativeSize
element.style.transform = element.style.webkitTransform = 'scale(' + scale.toFixed(3) + ')'
}
update()
window.addEventListener('resize', update)
}
</script>
</body>
</html>