Description:

A Simple Timer Application is a tool that allows users to set a countdown timer, which counts down from a specified time (e.g., minutes or seconds) to zero. Once the timer reaches zero, it triggers an alert or a notification. Simple timers are often used for things like cooking, productivity (Pomodoro timer), workout sessions, or managing time during presentations.

Features:

1. Set Timer Duration:

   • Allow users to input the time in hours, minutes, and seconds.

2. Start/Stop Timer:

   • Start the countdown and stop it if needed.

3. Pause/Resume Timer:

   • Pause the countdown and resume it from where it was paused.

4. Reset Timer:

   • Reset the timer to the initial set time.

5. Countdown Display:

   • Display the remaining time in a user-friendly format (HH:MM:SS).

6. Audio Notification:

   • Play a sound when the timer reaches zero (e.g., an alert tone, bell, or custom sound).

7. Visual Notification:

   • Change the background color or display a message when the timer reaches zero (e.g., "Time's Up!").

8. Timer Customization:

   • Provide the ability to customize the timer settings (e.g., sound on/off, background color change).

9. Responsive Design (For Web):

   • Ensure the app is usable on different screen sizes (desktop, tablet, and mobile).

10. Countdown Progress Bar (Optional):

    • Show a visual progress bar that fills as time elapses.

11. Time Format Options (Optional):

    • Allow users to switch between 12-hour and 24-hour formats.

Requirements:

1. For Web Applications:
   • CPU/RAM: Minimal requirements; most devices can run a simple timer app without issues.
   • Browser: Modern browsers like Chrome, Firefox, Safari, or Edge (for web apps).
2. For Mobile Apps:
   • Mobile Device (Android/iOS): Any device capable of running the app (supports timer functionality).
3. For Desktop Apps:
   • Desktop Computer (Windows/Mac/Linux): Any device capable of running the application.

Instructions:

1. Launch the Application:

   • Open the timer app on your mobile device, desktop, or browser.

2. Set Timer:

   • Enter the desired time for the countdown (e.g., 5 minutes or 30 seconds).
   • You may set the time by selecting hours, minutes, and seconds from a dropdown or input fields.

3. Start Timer:

   • Press the Start button to begin the countdown.
   • Once the timer is started, the interface will show the time remaining.

4. Pause Timer (Optional):

   • If the user needs to pause the countdown, they can click the Pause button.

5. Reset Timer (Optional):

   • If the user wants to restart the timer, they can click the Reset button to return the timer to the initial set time.

6. Timer Reaches Zero:

   • Once the timer reaches zero, the app can play a sound or display a notification (e.g., "Time's Up!").

7. Stop Timer (Optional):

   • The user can stop the timer manually before it reaches zero.