Stop Watch with Milliseconds Using Bootstrap 5

Stop Watch with Milliseconds Using Bootstrap 5
Code Snippet:Stop watch
Author: Abhinav Rawat
Published: January 29, 2024
Last Updated: February 3, 2024
Downloads: 318
License: MIT
Edit Code online: CodeHim
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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/bootstrap@5.3.0/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/bootstrap@5.3.0/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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