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How to create Javascript Countdown Timer

Learn how to create a countdown timer with JavaScript. We will go over how to make a countdown timer in today's article together. It is frequently used on websites primarily to show customers how much time is left for promotions, the release of new products, upcoming events, etc.

HTML

<div class="wrap">
  <h1>Draft <strong>Countdown</strong></h1>

<div class="countdown">
    <div class="bloc-time hours" data-init-value="24">
      <span class="count-title">Hours</span>

<div class="bloc-time min" data-init-value="0">
      <span class="count-title">Minutes</span>

<div class="bloc-time sec" data-init-value="0">
      <span class="count-title">Seconds</span>

CSS

body {
  background-color: #f2f1ed;
}

.wrap {
  position: absolute;
  bottom: 0;
  top: 0;
  left: 0;
  right: 0;
  margin: auto;
  height: 310px;
}

a {
  text-decoration: none;
  color: #1a1a1a;
}

h1 {
  margin-bottom: 60px;
  text-align: center;
  font: 300 2.25em "Lato";
  text-transform: uppercase;
}
h1 strong {
  font-weight: 400;
  color: #ea4c4c;
}

h2 {
  margin-bottom: 80px;
  text-align: center;
  font: 300 0.7em "Lato";
  text-transform: uppercase;
}
h2 strong {
  font-weight: 400;
}

.countdown {
  width: 720px;
  margin: 0 auto;
}
.countdown .bloc-time {
  float: left;
  margin-right: 45px;
  text-align: center;
}
.countdown .bloc-time:last-child {
  margin-right: 0;
}
.countdown .count-title {
  display: block;
  margin-bottom: 15px;
  font: normal 0.94em "Lato";
  color: #1a1a1a;
  text-transform: uppercase;
}
.countdown .figure {
  position: relative;
  float: left;
  height: 110px;
  width: 100px;
  margin-right: 10px;
  background-color: #fff;
  border-radius: 8px;
  -moz-box-shadow: 0 3px 4px 0 rgba(0, 0, 0, 0.2), inset 2px 4px 0 0 rgba(255, 255, 255, 0.08);
  -webkit-box-shadow: 0 3px 4px 0 rgba(0, 0, 0, 0.2), inset 2px 4px 0 0 rgba(255, 255, 255, 0.08);
  box-shadow: 0 3px 4px 0 rgba(0, 0, 0, 0.2), inset 2px 4px 0 0 rgba(255, 255, 255, 0.08);
}
.countdown .figure:last-child {
  margin-right: 0;
}
.countdown .figure > span {
  position: absolute;
  left: 0;
  right: 0;
  margin: auto;
  font: normal 5.94em/107px "Lato";
  font-weight: 700;
  color: #de4848;
}
.countdown .figure .top:after, .countdown .figure .bottom-back:after {
  content: "";
  position: absolute;
  z-index: -1;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 100%;
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}
.countdown .figure .top {
  z-index: 3;
  background-color: #f7f7f7;
  transform-origin: 50% 100%;
  -webkit-transform-origin: 50% 100%;
  -moz-border-radius-topleft: 10px;
  -webkit-border-top-left-radius: 10px;
  border-top-left-radius: 10px;
  -moz-border-radius-topright: 10px;
  -webkit-border-top-right-radius: 10px;
  border-top-right-radius: 10px;
  -moz-transform: perspective(200px);
  -ms-transform: perspective(200px);
  -webkit-transform: perspective(200px);
  transform: perspective(200px);
}
.countdown .figure .bottom {
  z-index: 1;
}
.countdown .figure .bottom:before {
  content: "";
  position: absolute;
  display: block;
  top: 0;
  left: 0;
  width: 100%;
  height: 50%;
  background-color: rgba(0, 0, 0, 0.02);
}
.countdown .figure .bottom-back {
  z-index: 2;
  top: 0;
  height: 50%;
  overflow: hidden;
  background-color: #f7f7f7;
  -moz-border-radius-topleft: 10px;
  -webkit-border-top-left-radius: 10px;
  border-top-left-radius: 10px;
  -moz-border-radius-topright: 10px;
  -webkit-border-top-right-radius: 10px;
  border-top-right-radius: 10px;
}
.countdown .figure .bottom-back span {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  margin: auto;
}
.countdown .figure .top, .countdown .figure .top-back {
  height: 50%;
  overflow: hidden;
  -moz-backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
}
.countdown .figure .top-back {
  z-index: 4;
  bottom: 0;
  background-color: #fff;
  -webkit-transform-origin: 50% 0;
  transform-origin: 50% 0;
  -moz-transform: perspective(200px) rotateX(180deg);
  -ms-transform: perspective(200px) rotateX(180deg);
  -webkit-transform: perspective(200px) rotateX(180deg);
  transform: perspective(200px) rotateX(180deg);
  -moz-border-radius-bottomleft: 10px;
  -webkit-border-bottom-left-radius: 10px;
  border-bottom-left-radius: 10px;
  -moz-border-radius-bottomright: 10px;
  -webkit-border-bottom-right-radius: 10px;
  border-bottom-right-radius: 10px;
}
.countdown .figure .top-back span {
  position: absolute;
  top: -100%;
  left: 0;
  right: 0;
  margin: auto;
}

JavaScript

var Countdown = {
    $el: $('.countdown'),
    countdown_interval: null,
    total_seconds: 0,

init: function () {
      this.$ = {
        hours: this.$el.find('.bloc-time.hours .figure'),
        minutes: this.$el.find('.bloc-time.min .figure'),
        seconds: this.$el.find('.bloc-time.sec .figure')
      };

this.values = {
        hours: this.$.hours.parent().attr('data-init-value'),
        minutes: this.$.minutes.parent().attr('data-init-value'),
        seconds: this.$.seconds.parent().attr('data-init-value'),
      };

this.total_seconds = this.values.hours * 60 * 60 + (this.values.minutes * 60) + this.values.seconds;

this.count();
    },

count: function () {
      var that = this,
        $hour_1 = this.$.hours.eq(0),
        $hour_2 = this.$.hours.eq(1),
        $min_1 = this.$.minutes.eq(0),
        $min_2 = this.$.minutes.eq(1),
        $sec_1 = this.$.seconds.eq(0),
        $sec_2 = this.$.seconds.eq(1);

this.countdown_interval = setInterval(function () {
        if (that.total_seconds > 0) {
          --that.values.seconds;

if (that.values.minutes >= 0 && that.values.seconds < 0) {
            that.values.seconds = 59;
            --that.values.minutes;
          }

if (that.values.hours >= 0 && that.values.minutes < 0) {
            that.values.minutes = 59;
            --that.values.hours;
          }

that.checkHour(that.values.hours, $hour_1, $hour_2);
          that.checkHour(that.values.minutes, $min_1, $min_2);
          that.checkHour(that.values.seconds, $sec_1, $sec_2);

--that.total_seconds;
        } else {
          clearInterval(that.countdown_interval);
        }
      }, 1000);
    },

animateFigure: function ($el, value) {
      var that = this,
        $top = $el.find('.top'),
        $bottom = $el.find('.bottom'),
        $back_top = $el.find('.top-back'),
        $back_bottom = $el.find('.bottom-back');

$back_top.find('span').html(value);
      $back_bottom.find('span').html(value);

TweenMax.to($top, 0.8, {
        rotationX: '-180deg',
        transformPerspective: 300,
        ease: Quart.easeOut,
        onComplete: function () {
          $top.html(value);
          $bottom.html(value);
          TweenMax.set($top, {rotationX: 0});
        }
      });

TweenMax.to($back_top, 0.8, {
        rotationX: 0,
        transformPerspective: 300,
        ease: Quart.easeOut,
        clearProps: 'all'
      });
    },

checkHour: function (value, $el_1, $el_2) {
      var val_1 = value.toString().charAt(0),
        val_2 = value.toString().charAt(1),
        fig_1_value = $el_1.find('.top').html(),
        fig_2_value = $el_2.find('.top').html();

if (value >= 10) {
        if (fig_1_value !== val_1) this.animateFigure($el_1, val_1);
        if (fig_2_value !== val_2) this.animateFigure($el_2, val_2);
      } else {
        if (fig_1_value !== '0') this.animateFigure($el_1, 0);
        if (fig_2_value !== val_1) this.animateFigure($el_2, val_1);
      }
    }
  };

$(document).ready(function () {
    Countdown.init();
  });

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How to create Javascript Countdown Timer

HTML

CSS

JavaScript

Output