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HTML 

              
                <div id="result">
    <header>
         <h1>Tick tock.</h1>
    </header>
    <canvas id="analog" width="310" height="310">Sorry, your browser does not support the most awesome HTML5 element, canvas. Have you considered <a href="https://google.com/chrome">updating</a>?</canvas>
    <div id="digital"></div>
</div>
!

CSS 

              
                @import url('https://fonts.googleapis.com/css?family=Open+Sans:400, 700, 600');

html, body {
    font-family:"Open Sans", san-serif;
    color:#232323;
    background:#369;
}
#result {
    width:100%;
    max-width:960px;
    padding:30px;
    background:#eee;
    margin:10px auto;
}
div, h1, header{
    width:100%;
    margin:10px auto;
}
h1, h2 {
    font-weight:700;
    display:block;
    text-align:center;
    color:#369;
    border-bottom:5px solid #aaa;
}
h1{
    font-size:2.2em;
}
#analog{
  display:block;
  margin:10px auto;
  width:310px;
}
#digital{
  margin:20px auto;
  width:100%;
  text-align:center;
}
.digital{
  font-size:2em;
  padding:5px 10px;
  border: 5px solid #666;
  border-radius:5px;
  background:#000;
  color:#0f0;
}
!

JS 

              
                analogTime()

function drawClock(){
    var d = new Date();
    var hours = d.getHours() % 12;
    var min = d.getMinutes();
    var seconds = d.getSeconds();
    var minutes = min + hours*60;
    var angle = minutes/2;
    var minangle = min*6;
    var secangle = seconds*6;
        
    //set canvas variables
    var canvas = document.getElementById('analog'),
        ctx = canvas.getContext('2d');
    
        canvas.width = canvas.width;
    
    //draw circle for clock outline    
    ctx.beginPath();
    ctx.arc(155, 155, 150, 0, 2 * Math.PI);
    ctx.lineWidth = 5;
    ctx.strokeStyle = '#000';
    ctx.stroke();
    ctx.translate(0, 0);
    ctx.rotate(0);
    ctx.save();
    ctx.save();
    ctx.save();
    
    //draw and rotate hours arm
    ctx.translate(155, 155);
    ctx.rotate(angle*Math.PI/180);
    ctx.beginPath();
    ctx.moveTo(0, 0)
    ctx.lineTo(0, -100);
    ctx.lineTo(0, 20);
    ctx.lineWidth = 5;
    ctx.stroke();
    
    //draw and rotate seconds arm
    ctx.restore();
    ctx.translate(155,155);
    ctx.rotate(secangle*Math.PI/180);
    ctx.beginPath();
    ctx.moveTo(0, 0);
    ctx.lineTo(0, -130);
    ctx.lineTo(0, 20);
    ctx.lineWidth = 1;
    ctx.strokeStyle = "#F00";
    ctx.stroke();
    
    //draw and rotate minutes arm
    ctx.restore();
    ctx.translate(155,155);
    ctx.rotate(minangle*Math.PI/180);
    ctx.beginPath();
    ctx.moveTo(0, 0)
    ctx.lineTo(0, -130);
    ctx.lineTo(0, 20);
    ctx.lineWidth = 3;
    ctx.stroke();
    
    //add numbers to clock   
    ctx.restore();
    ctx.translate(155,155)
    ctx.font = "30px Helvetica";
    ctx.fillText("12",-20,-120);
    ctx.fillText("11", -75, -100);
    ctx.fillText("10", -120, -50);
    ctx.fillText("9", -140, 12);
    ctx.fillText("8",-120, 70);
    ctx.fillText("7", -75, 115);
    ctx.fillText("6", -8, 140);
    ctx.fillText("5", 65, 115);
    ctx.fillText("4",105, 70);
    ctx.fillText("3", 125, 12);
    ctx.fillText("2", 105, -50);
    ctx.fillText("1", 50, -100);
    
    //display digital clock above analog clock
    //check if hours = 0 to return 12
    if(hours == 0){
        hours = 12;
    }
    if(min < 10){//if min less than 10 add a zero in front of min.
        min = '0' + min;
    }
    if(seconds < 10){//if min less than 10 add a zero in front of min.
        seconds = '0' + seconds;
    }
    document.getElementById('digital').innerHTML = '<span class="digital">' + hours + ':' + min + ':' + seconds + '</span>';
}

function analogTime(){
    document.getElementById('result').style.display = "block";
    
    drawClock();
    
    setInterval(function(){
    
    var canvas = document.getElementById('analog');
        canvas.width = canvas.width;
        
        drawClock();
        
    }, 100);
}
!
999px

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