This code implements a responsive stop watch with milliseconds using Bootstrap 5. The stopwatch displays hours, minutes, seconds, and milliseconds. You can start and stop the stopwatch with the “Start/Stop” button and reset it with the “Reset” button. The circular frame and controls are styled with Bootstrap, ensuring a visually appealing and user-friendly design. It’s a helpful tool for tracking time accurately in various scenarios.
How to Create Stop Watch With Milliseconds Using Bootstrap 5
1. First of all, include the necessary Bootstrap and Font Awesome CDN links in the <head> section of your HTML file.
<!-- Bootstrap 5 CSS --> <link href="https://cdn.jsdelivr.net/npm/[email protected]/dist/css/bootstrap.min.css" rel="stylesheet"> <!-- Font Awesome Icons --> <link href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.15.1/css/all.min.css" rel="stylesheet">
2. In HTML, create a container with the required elements for the stopwatch.
<div id="stopwatch-container">
<!-- Outer frame containing the circular frame and stopwatch -->
<div id="outer-frame">
<div id="outer-circle">
<div id="stopwatch">00:00:00:00:00:00:000</div>
</div>
</div>
<!-- Controls for the stopwatch -->
<div id="controls">
<button class="btn btn-primary" onclick="startStop()">
<i class="fas fa-play"></i> Start/Stop
</button>
<button class="btn btn-danger" onclick="reset()">
<i class="fas fa-stop"></i> Reset
</button>
</div>
</div>
3. Add the required styles to make the stopwatch visually appealing. Customize the colors, fonts, and sizes according to your preference.
body {
font-family: 'Arial', sans-serif;
display: flex;
align-items: center;
justify-content: center;
height: 100vh;
margin: 0;
background-color: #2c3e50 !important; /* Dark grey background color */
color: #ecf0f1; /* Light text color */
}
#stopwatch-container {
text-align: center;
}
#outer-frame {
width: 260px;
height: 260px;
border: 5px solid #ecf0f1; /* Circular frame color */
border-radius: 50%;
display: flex;
align-items: center;
justify-content: center;
margin: 0 auto; /* Center the frame */
}
#outer-circle {
width: 220px;
height: 220px;
border-radius: 50%;
background-color: #3498db;
display: flex;
align-items: center;
justify-content: center;
}
#stopwatch {
font-size: 2em;
color: #fff;
}
#controls {
margin-top: 20px;
}
button {
font-size: 1em;
padding: 10px 20px;
margin: 0 5px;
cursor: pointer;
}
4. Now, load the Bootstrap 5 JS, Popper JS, and jQuery by adding the following CDN links before closing the body tag:
<!-- Bootstrap 5 JS, Popper.js, and jQuery --> <script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/js/bootstrap.bundle.min.js"></script> <script src="https://code.jquery.com/jquery-3.6.4.min.js"></script>
5. Finally, include the following JavaScript code for the stopwatch functionality. This code handles starting, stopping, resetting, and updating the display with the elapsed time:
let startTime;
let accumulatedTime = 0;
let running = false;
function startStop() {
if (running) {
running = false;
} else {
startTime = null;
requestAnimationFrame(updateTime);
running = true;
}
}
function reset() {
accumulatedTime = 0;
updateDisplay();
running = false;
}
function updateTime(timestamp) {
if (!startTime) {
startTime = timestamp;
}
if (!running) return;
accumulatedTime = timestamp - startTime;
updateDisplay();
requestAnimationFrame(updateTime);
}
function updateDisplay() {
const totalMilliseconds = Math.floor(accumulatedTime);
const days = Math.floor(totalMilliseconds / (24 * 60 * 60 * 1000));
const hours = Math.floor((totalMilliseconds % (24 * 60 * 60 * 1000)) / (60 * 60 * 1000));
const minutes = Math.floor((totalMilliseconds % (60 * 60 * 1000)) / (60 * 1000));
const seconds = Math.floor((totalMilliseconds % (60 * 1000)) / 1000);
const milliseconds = totalMilliseconds % 1000;
const timeString = `${formatTime(days)}:${formatTime(hours)}:${formatTime(minutes)}:${formatTime(seconds)}:${formatTime(milliseconds, 3)}`;
document.getElementById('stopwatch').innerText = timeString;
}
function formatTime(value, digits = 2) {
const paddedValue = value.toString().padStart(digits, '0');
return paddedValue.substring(0, digits);
}
// Add event listener to stop the stopwatch on any touch
$(document).on('touchstart', function () {
running = false;
});
// Initial display
updateDisplay();
That’s all! hopefully, you have successfully created a stopwatch with milliseconds using Bootstrap 5. If you have any questions or suggestions, feel free to comment below.
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