Create Analog Clock Widget With HTML5 Canvas And JavaScript

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HTML5 Canvas element is used to hold the graphics drawn with JavaScript. The canvas tag is only used to hold the element as a placeholder or container. The actual graphics are drawn with JavaScript. In this article, we will draw a simple analogue clock using JavaScript and place it on a page with a Canvas container.

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Features:

1. Light Weight.
2. Pure JavaScriptCode.
3. Cross Browser.
4. No External Files.
5. Fully Customizable.
6. Responsive.

How To Create Analog Clock Widget With HTML5 Canvas And JavaScript??

There are a few easy and understandable steps to achieve your desired functionality that we are gonna share below. Follow each step perfectly.

HTML:

<center>
<canvas id="canvas" width="300" height="300"></canvas>
</center>

JavaScript:

<script type="text/JavaScript">
x=150;
y=150;
clock=document.getElementById("canvas");
ctx=clock.getContext("2d");

function loop()
{
time=new Date();
h=time.getHours();
m=time.getMinutes();
s=time.getSeconds();

ctx.beginPath();
ctx.fillStyle="white";
ctx.arc(x,y,140,0,Math.PI*2,true);
ctx.fill();
ctx.strokeStyle="red";
ctx.lineWidth=10;
ctx.stroke();
drawNumber();

drawPointer(360*(h/12)+(m/60)*30-90,70,"black",10);
drawPointer(360*(m/60)+(s/60)*6-90,100,"black",10);
drawPointer(360*(s/60)+x-90,120,"red",2);
}

function drawNumber()
{
for(n=0;n<12;n++)
{
d=-60;
num = new Number(n+1);
str = num.toString();
dd = Math.PI/180*(d+n*30);
tx = Math.cos(dd)*120+140;
ty = Math.sin(dd)*120+160;
ctx.font = "26px Verdana";
ctx.fillStyle = "brown";
ctx.fillText(str, tx, ty);
}
}

function drawPointer(deg,len,color,w)
{
rad=(Math.PI/180*deg);
x1=x+Math.cos(rad)*len;
y1=y+Math.sin(rad)*len;

ctx.beginPath();
ctx.strokeStyle=color;
ctx.lineWidth=w;
ctx.moveTo(x,y);
ctx.lineTo(x1,y1);
ctx.stroke();
}
setInterval(loop,500);

</script>

Customization:

No need to customize it. Just copy-paste. Rest edit the code as per comments and need. Remember to add JavaScript after HTML code.

Troubleshooting the Errors:

Do it with concentration and patience. Check your all steps and again and all codes or scripts. If you find any error you can contact us anytime via comment or better via email, We are always here to help you.

Final Words:

That’s all we have. We hope that you liked this article. If you have any problem with this code in your template then feel free to contact us with a full explanation of your problem. We will reply to you as time allows us If you have any doubts or problems please comment below. We are happy to help you! If you liked this article, Don’t forget to share this with your friends so they can also take benefit from it and leave.