diff --git a/Sprint-3/alarmclock/alarmclock.js b/Sprint-3/alarmclock/alarmclock.js
index 6ca81cd3b..f96df8e9a 100644
--- a/Sprint-3/alarmclock/alarmclock.js
+++ b/Sprint-3/alarmclock/alarmclock.js
@@ -1,4 +1,50 @@
-function setAlarm() {}
+let countdownInterval
+let alarmTimeout;
+
+function setAlarm() {
+ const secondsInput = document.getElementById("alarmSet").value;
+ const totalSeconds = parseInt(secondsInput, 10);
+
+ if (isNaN(totalSeconds) || totalSeconds <= 0) {
+ alert("Please enter a valid number of seconds.");
+ return;
+ }
+
+ // Clear any existing countdown
+ clearInterval(countdownInterval);
+ clearTimeout(alarmTimeout);
+
+ const alarmDuration = totalSeconds * 1000;
+ const endTime = Date.now() + alarmDuration;
+
+ // set alarm
+ alarmTimeout = setTimeout(() => {
+ playAlarm();
+ }, alarmDuration);
+
+ // Update countdown
+ const updateCountdown = () => {
+ const timeLeft = endTime - Date.now();
+
+ if (timeLeft <= 0) {
+ clearInterval(countdownInterval);
+ document.getElementById("timeRemaining").innerText = "Time Remaining: 00:00";
+ return;
+ }
+
+ const minutes = Math.floor((timeLeft / 1000) / 60);
+ const seconds = Math.floor((timeLeft / 1000) % 60);
+
+ document.getElementById("timeRemaining").innerText =
+ `Time Remaining: ${String(minutes).padStart(2, '0')}:${String(seconds).padStart(2, '0')}`;
+ };
+
+ //start countdown
+ updateCountdown();
+ countdownInterval = setInterval(updateCountdown, 1000);
+}
+
+
// DO NOT EDIT BELOW HERE
@@ -23,3 +69,4 @@ function pauseAlarm() {
}
window.onload = setup;
+
diff --git a/Sprint-3/alarmclock/index.html b/Sprint-3/alarmclock/index.html
index 48e2e80d9..477ca4eeb 100644
--- a/Sprint-3/alarmclock/index.html
+++ b/Sprint-3/alarmclock/index.html
@@ -4,13 +4,13 @@
- Title here
+ Alarm Clock
Time Remaining: 00:00
-
+