initializeClock() takes two parameters: id (the ID of the HTML element where the timer will be displayed) and endtime (the deadline).updateClock() retrieves the remaining time using the getTimeRemaining() function and updates the corresponding spans (days, hours, minutes, seconds).setInterval() ensures that the updateClock() function runs every second (1000 milliseconds).- If the total remaining time becomes zero or negative, the interval is cleared, stopping the countdown.
Now, let’s determine the deadline. If the current day of the month is on or after the 20th, we will set the countdown to the 20th of the next month. Otherwise, it will count down to the 20th of the current month: