Bonjour à tous !

Je cherche à faire en html un compteur indiquant le nombre de jours, heures, minutes et secondes depuis le dernier accident de travail dans mon entreprise.
Je n'y connais pas grand chose en html...
Après quelques recherches sur le net j'ai trouvé un code de compteur qui visuellement me plait parfaitement mais il y a un soucis, il décompte alors que je souhaiterais qu'il compte...

Voici le code:

Code html : Sélectionner tout - Visualiser dans une fenêtre à part
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
<!DOCTYPE html>
<html class=''>
<head>
<script src='//production-assets.codepen.io/assets/editor/live/console_runner-079c09a0e3b9ff743e39ee2d5637b9216b3545af0de366d4b9aad9dc87e26bfd.js'></script>
<script src='//production-assets.codepen.io/assets/editor/live/events_runner-73716630c22bbc8cff4bd0f07b135f00a0bdc5d14629260c3ec49e5606f98fdd.js'></script>
<script src='//production-assets.codepen.io/assets/editor/live/css_live_reload_init-2c0dc5167d60a5af3ee189d570b1835129687ea2a61bee3513dee3a50c115a77.js'></script>
<meta charset='UTF-8'>
<meta name="robots" content="noindex">
<link rel="shortcut icon" type="image/x-icon" href="//production-assets.codepen.io/assets/favicon/favicon-8ea04875e70c4b0bb41da869e81236e54394d63638a1ef12fa558a4a835f1164.ico" />
<link rel="mask-icon" type="" href="//production-assets.codepen.io/assets/favicon/logo-pin-f2d2b6d2c61838f7e76325261b7195c27224080bc099486ddd6dccb469b8e8e6.svg" color="#111" />
<link rel="canonical" href="https://codepen.io/coreybruyere/pen/lrwzH" />
 
<link rel='stylesheet prefetch' href='https://cdnjs.cloudflare.com/ajax/libs/normalize/5.0.0/normalize.min.css'>
<style class="cp-pen-styles">
body {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
      -ms-flex-align: center;
          align-items: center;
  min-height: 100vh;
  text-align: center;
  font-family: helvetica;
  text-transform: uppercase;
  background-image: -webkit-linear-gradient(285deg, rgba(194, 233, 221, 0.5) 3%, rgba(104, 119, 132, 0.5) 100%);
  background-image: linear-gradient(165deg, rgba(194, 233, 221, 0.5) 3%, rgba(104, 119, 132, 0.5) 100%);
}
 
.countdown {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -ms-flex-wrap: wrap;
      flex-wrap: wrap;
  -webkit-box-pack: justify;
      -ms-flex-pack: justify;
          justify-content: space-between;
  width: 75%;
  max-width: 20rem;
  margin: 0 auto;
}
 
.countdown__item {
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
      -ms-flex-direction: column;
          flex-direction: column;
  -webkit-box-flex: 0;
      -ms-flex: 0 1 auto;
          flex: 0 1 auto;
  min-width: 31%;
  margin-bottom: 1rem;
}
 
.countdown__item--large {
  -webkit-box-flex: 1;
      -ms-flex: auto;
          flex: auto;
  width: 100%;
  font-size: 2.75em;
}
 
.countdown__timer {
  padding: .25em;
  background-color: white;
  border: 1px solid black;
  border-radius: 3px;
  font-weight: bold;
  font-size: 2em;
}
 
.countdown__label {
  font-size: 1em;
  padding-top: .40em;
}
.countdown__item--large .countdown__label:before, .countdown__item--large .countdown__label:after {
  content: '';
  display: block;
  height: 1px;
  background-image: -webkit-linear-gradient(left, transparent, rgba(0, 0, 0, 0.4), transparent);
  background-image: linear-gradient(left, transparent, rgba(0, 0, 0, 0.4), transparent);
}
</style></head><body>
<!-- 2017 Countdown - Simple JS, HTML, & CSS only -->
 
<body>
  <div class="countdown" id="js-countdown">
    <div class="countdown__item countdown__item--large">
      <div class="countdown__timer js-countdown-days" aria-labelledby="day-countdown">
 
      </div>
 
      <div class="countdown__label" id="day-countdown">Jours</div>
    </div>
 
    <div class="countdown__item">
      <div class="countdown__timer js-countdown-hours" aria-labelledby="hour-countdown">
 
      </div>
 
      <div class="countdown__label" id="hour-countdown">Heures</div>
    </div>
 
    <div class="countdown__item">
      <div class="countdown__timer js-countdown-minutes" aria-labelledby="minute-countdown">
 
      </div>
 
      <div class="countdown__label" id="minute-countdown">Minutes</div>
    </div>
 
    <div class="countdown__item">
      <div class="countdown__timer js-countdown-seconds" aria-labelledby="second-countdown">
 
      </div>
 
      <div class="countdown__label" id="second-countdown">Secondes</div>
    </div>
  </div>
</body>
 
 
 
 
<!-- 2013 Countdown -->
<!-- <body>
  <form class="countdown" name="countDown">
    <input size="4" name="daysLeft" />
    <hr class="soft">
    <h3>Days</h3>
    <hr class="soft">
    <span class="bottom_time"><input size="3"  name="hrLeft" /></span>
    <span class="bottom_time"><input size="3"  name="minLeft" /></span>
    <span class="bottom_time"><input size="3"  name="secLeft" /></span>
    <ul>
      <li>Hrs</li>
      <li>Min</li>
      <li>Sec</li>
    </ul>
  </form>
</body> -->
<script src='//production-assets.codepen.io/assets/common/stopExecutionOnTimeout-b2a7b3fe212eaa732349046d8416e00a9dec26eb7fd347590fbced3ab38af52e.js'></script>
<script >'use strict';
 
// ========================== //
// 2017 Countdown JS
// ========================== //
 
var countdown = new Date("October 26, 2017");
 
function getRemainingTime(endtime) {
  var milliseconds = Date.parse(endtime) - Date.parse(new Date());
  var seconds = Math.floor(milliseconds / 1000 % 60);
  var minutes = Math.floor(milliseconds / 1000 / 60 % 60);
  var hours = Math.floor(milliseconds / (1000 * 60 * 60) % 24);
  var days = Math.floor(milliseconds / (1000 * 60 * 60 * 24));
 
  return {
    'total': milliseconds,
    'seconds': seconds,
    'minutes': minutes,
    'hours': hours,
    'days': days
  };
}
 
function initClock(id, endtime) {
  var counter = document.getElementById(id);
  var daysItem = counter.querySelector('.js-countdown-days');
  var hoursItem = counter.querySelector('.js-countdown-hours');
  var minutesItem = counter.querySelector('.js-countdown-minutes');
  var secondsItem = counter.querySelector('.js-countdown-seconds');
 
  function updateClock() {
    var time = getRemainingTime(endtime);
 
    daysItem.innerHTML = time.days;
    hoursItem.innerHTML = ('0' + time.hours).slice(-2);
    minutesItem.innerHTML = ('0' + time.minutes).slice(-2);
    secondsItem.innerHTML = ('0' + time.seconds).slice(-2);
 
    if (time.total <= 0) {
      clearInterval(timeinterval);
    }
  }
 
  updateClock();
  var timeinterval = setInterval(updateClock, 1000);
}
 
initClock('js-countdown', countdown);
 
// ========================== //
// 2013 Countdown JS
// ========================== //
 
// function counter() {
//   var today = new Date(); //variable contains current date and time
 
//   var days = calcDays(today); //calculate the time left until set date below
//   document.countDown.daysLeft.value = Math.floor(days); // displays days rounded to the next lowest integer
 
//   var hours = (days - Math.floor(days)) * 24; //calculate the hours left in the current day
//   document.countDown.hrLeft.value = Math.floor(hours); // display hours rounded to the next lowest integer
 
//   var minutes = (hours - Math.floor(hours)) * 60; // calculate the minutes left in the current hour
//   document.countDown.minLeft.value = Math.floor(minutes); // display minutes rounded to the next lowest integer
 
//   var seconds = (minutes - Math.floor(minutes)) * 60; //calculate the seconds left in the current minute
//   document.countDown.secLeft.value = Math.floor(seconds); // display seconds rounded to the next lowest integer
// }
 
// function calcDays(currentDate) {
//   //create a date object for date of graduation
//   //calculate the difference between currentDate and set date
//   setDate = new Date("May 6, 2013");
//   currentTime = currentDate.getFullYear() + 1;
//   setDate.setFullYear(currentTime);
 
//   days = (setDate - currentDate) / (1000 * 60 * 60 * 24);
//   return days;
// }
 
// setInterval('counter()', 1000)
//# sourceURL=pen.js
</script>
</body></html>

Une âme charitable pourrait me dire quoi changer pour qu'il compte au lieu de décompter svp ?

D'avance merci !