In this step we will add some code (tags) into the HTML body then we will access those tags in the setInterval() function and modify them to show the timer on the webpage: We can calculate the minutesLeft and secondsLeft variables similarly. Then we calculated the hours from the remaining time.

To calculate the hoursLeft we first got rid of the days by using the modulus operator. The number returned by the (remainingTime / day) operation will most often be a decimal number but we only need the whole number part so we have used the un() method. We have calculated the days left by dividing the amount of milliseconds present in remainingTime by the amount of milliseconds in one day If there are 86,400,000 milliseconds left then daysLeft will be equal to one (86,400,000/86,400,000), if there are 172,800,000 milliseconds left then daysLeft will be equal to 2 (172,800,000/86,400,000) and so on. trunc ( (remainingTime % minute ) / second ) trunc ( (remainingTime % hour ) / minute ) In this step we will declare a variable and assign it the value of the end date of our timer using the Date object:ĭaysLeft = Math. The first step of creating a countdown timer is to set the end date of the timer. The basics of the countdown timer are as follows: Set the End Date of the timer

How to create a countdown timer in JavaScript Improves website performance as there is no need to load any external stylesheets and scripts.The code is lighter because there are no dependencies.The benefits of creating the countdown clock in vanilla JavaScript are as follows: In this how-to guide we will make a time counter in vanilla JavaScript, instead of using third party libraries or plugins. Countdown timers can also be used to count down the time till an offer becomes available Timers can also be used on websites or blogs in order to display a countdown for special events i.e. The “time is running out” element on the countdown pages helps create urgency to generate more conversions on E-commerce websites.

They were mostly used on the landing page of new upcoming websites but now they have found their way into e-commerce websites. Countdown timers are a kind of a virtual clocks which count the time until a specific date to mark the start or end of a special occasion.

Set flipclock var countdown