Countdown Timer

The countdown timer is a web application that allows users to set a specific date and time, and then counts down the remaining time until that event. The timer is built using HTML, CSS, and JavaScript. Users can enter the desired date and time using a datetime input field, and upon clicking the "Start Countdown" button, the timer will start ticking. The countdown is displayed in the days, hours, minutes, and seconds format, showing the remaining time until the specified event. Once the countdown reaches zero, the timer will display "EXPIRED". This countdown timer is useful for various purposes, such as counting down to a special occasion, an upcoming event, or a deadline. It provides a clear visual representation of the time left, allowing users to track the progress and build anticipation for the awaited event.