In this blog post, I shared a simple Javascript Timer. Which can we control by buttons.
index.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Make Simple Javascript Timer</title>
<link rel="stylesheet" href="style.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
</head>
<body>
<center>
<div id="timer">
<span id="hours">00:</span>
<span id="mins">00:</span>
<span id="seconds">00</span>
</div>
<div id="controls">
<button id="start">Start</button>
<button id="stop">Stop</button>
<button id="reset">Reset</button>
</div>
</center>
<script src="script.js"></script>
</body>
</html>
script.js
var hours =0;
var mins =0;
var seconds =0;
$('#start').click(function(){
startTimer();
});
$('#stop').click(function(){
clearTimeout(timex);
});
$('#reset').click(function(){
hours =0; mins =0; seconds =0;
$('#hours','#mins').html('00:');
$('#seconds').html('00');
});
function startTimer(){
timex = setTimeout(function(){
seconds++;
if(seconds >59){seconds=0;mins++;
if(mins>59) {
mins=0;hours++;
if(hours <10) {$("#hours").text('0'+hours+':')} else $("#hours").text(hours+':');
}
if(mins<10){
$("#mins").text('0'+mins+':');}
else $("#mins").text(mins+':');
}
if(seconds <10) {
$("#seconds").text('0'+seconds);} else {
$("#seconds").text(seconds);
}
startTimer();
},1000);
}
style.css
#timer {
font-size:150px;
margin:0 auto;
width:1000px;
}
#controls {
margin:0 auto;
width:600px;
}
#controls button {
font-size:24px;
}
I hope it will helps you.

Brijpal Sharma is a web developer with a passion for writing tech tutorials. Learn JavaScript and other web development technology.