特效描述：html5 css3 带日期 圆形数字 电子时钟代码。HTML5+CSS3圆形数字电子时钟。

代码结构

1. 引入JS

2. HTML代码

$(function(){

var clock = document.getElementById("clock");

function initNumXY(){

// 1、12个数字的位置设置

var radius = 160;//大圆半价

var dot_num = 360/$(".dot").length;//每个div对应的弧度数

//每一个dot对应的弧度;

var ahd = dot_num*Math.PI/180;

$(".dot").each(function(index, el) {

$(this).css({

"left":180+Math.sin((ahd*index))*radius,

"top":180+Math.cos((ahd*index))*radius

});

});

// 2、刻钟设置

for(var i = 0; i < 60; i++) {

clock.innerHTML += "

";

}

var scale = document.getElementsByClassName("clock-scale");

for(var i = 0; i < scale.length; i++) {

scale[i].style.transform="rotate(" + (i * 6 - 90) + "deg)";

}

}

initNumXY();//调用上面的函数

//获取时钟id

var hour_line = document.getElementById("hour_line"),

minute_line = document.getElementById("minute_line"),

second_line = document.getElementById("second_line"),

date_info=document.getElementById("date_info"),//获取date_info

hour_time = document.getElementById("hour_time"),// 获去时间id

minute_time = document.getElementById("minute_time"),

second_time = document.getElementById("second_time");

//3、设置动态时间

function setTime(){

var nowdate = new Date();

//获取年月日时分秒

var year = nowdate.getFullYear(),

month = nowdate.getMonth()+1,

day = nowdate.getDay(),

hours = nowdate.getHours(),

minutes = nowdate.getMinutes(),

seconds = nowdate.getSeconds(),

date = nowdate.getDate();

var weekday =["星期日","星期一","星期二","星期三","星期四","星期五","星期六"];

// 获取日期id

date_info.innerHTML=year+"年"+month+"月"+day+"日 "+weekday[day];

hour_time.innerHTML = hours >=10 ? hours : "0"+hours;

minute_time.innerHTML = minutes >=10 ? minutes : "0"+minutes;

second_time.innerHTML = seconds >=10 ? seconds : "0"+seconds;

console.log(year+"年"+month+"月"+day+"日 "+weekday[day]);

//时分秒针设置

var hour_rotate = (hours*30-90) + (Math.floor(minutes / 12) * 6);

hour_line.style.transform = 'rotate(' + hour_rotate + 'deg)';

minute_line.style.transform = 'rotate(' + (minutes*6 - 90) + 'deg)';

second_line.style.transform = 'rotate(' + (seconds*6 - 90)+'deg)';

}

// setTime();

setInterval(setTime, 1000);

});