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Canvas Clock Start

In these chapters we build an analog clock using HTML Canvas.

Part V - Start the Clock

To start the clock, call the drawClock function at intervals:


var canvas = document.getElementById("canvas");
var ctx = canvas.getContext("2d");
var radius = canvas.height / 2;
ctx.translate(radius, radius);
radius = radius * 0.90
setInterval(drawClock, 1000);
Try it Yourself »

Example Explained

The only thing you have to do (to start the clock) is to call the drawClock function at intervals.




setInterval(drawClock, 1000);

The interval is in milliseconds. drawClock will be called for each 1000 milliseconds.