Countdown-Timer-20mins/index.html at main · NarendraJoglekar/Countdown-Timer-20mins · GitHub

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<html lang="en">
	<head>
		<meta charset="UTF-8" />
		<meta name="viewport" content="width=device-width, initial-scale=1.0" />
		<title>Countdown Timer</title>
		<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.29.4/moment.min.js"></script>
		<style>
			body {
				font-family: Arial, sans-serif;
				text-align: center;
				margin-top: 50px;
			}
			#current-time,
			#countdown {
				font-size: 24px;
				margin: 20px;
			}
			button {
				font-size: 16px;
				padding: 10px;
				margin: 10px;
				cursor: pointer;
			}
		</style>
	</head>
	<body>
		<div id="current-time">Current time: --:--:--</div>
		<div id="countdown">05 min : 00 sec left</div>
		<button onclick="startTimer()">Start</button>
		<button onclick="stopTimer()">Stop</button>
		<button onclick="resetTimer()">Reset</button>

		<script>
			let timerInterval;
			let remainingSeconds = 1200;

			function updateTime() {
				const now = moment();
				document.getElementById(
					'current-time',
				).innerText = `Current time: ${now.format('hh:mm:ss A')}`;
			}

			function updateCountdown() {
				const countdownMinutes = Math.floor(remainingSeconds / 60);
				const countdownSeconds = remainingSeconds % 60;
				document.getElementById('countdown').innerText = `${String(
					countdownMinutes,
				).padStart(2, '0')} min : ${String(countdownSeconds).padStart(
					2,
					'0',
				)} sec left`;
			}

			function startTimer() {
				if (timerInterval) return;
				timerInterval = setInterval(() => {
					if (remainingSeconds > 0) {
						remainingSeconds--;
						updateTime();
						updateCountdown();
					} else {
						clearInterval(timerInterval);
						timerInterval = null;
						resetTimer();
					}
				}, 1000);
			}
			function stopTimer() {
				clearInterval(timerInterval);
				timerInterval = null;
			}
			function resetTimer() {
				stopTimer();
				remainingSeconds = 1200;
				updateCountdown();
			}
			updateTime();
			updateCountdown();
			setInterval(updateTime, 1000);
		</script>

		<br />
		<br />
		<hr />
		<a href="https://github.com/NarendraJoglekar">@NarendraJoglekar</a>
		<br />
	</body>
</html>