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Here you can Sed posuere consectetur est at lobortis. Donec ullamcorper nulla non metus auctor fringilla. Maecenas sed diam eget risus varius blandit sit amet non magna. Donec id elit non mi porta gravida at eget metus. Praesent commodo cursus magna, vel scelerisque nisl consectetur et.

HTML

              
                <div id="time-container">
  <h2>Time as Color</h2>
  <p class="description">See any time as a color or auto-localize to your current time. To learn more about this project, check out the details.</p>
  <div id="settings">
    <input id="military-time-toggle" type="checkbox"/>
    <label for="military-time-toggle">Military Time</label>
    <div id="time-holder">
      <select id="hours"></select>
      <select id="minutes"></select>
      <select id="seconds"></select>
      <select id="am-pm" class="visible">
        <option id="time-of-day-am">AM</option>
        <option id="time-of-day-pm">PM</option>
      </select>
    </div>
    <button id="use-my-time">Use My Current Time</button>
  </div>
</div>
              
            
!

CSS

              
                :root {
  --background-color: #000000;
}

html, body {
  margin: 0;
  height: 100%;
}

body {
  background-color: var(--background-color);
  transition: 0.2s;
}

#time-container {
  background-color: white;
  padding: 1.25rem;
  border-radius: 6px;
  position: absolute;
  max-width: 40vw;
  top: 50%;
  left: 50%;
  transform: translate3d(-50%, -50%, 0);
  h2 {
    color: white;
    margin: 0 auto 1rem;
    $text-shadow: 1px 1px var(--background-color);
    @for $i from 2 to 10 {
      $text-shadow: $text-shadow, #{$i}px #{$i}px var(--background-color);
    }
    text-shadow: $text-shadow;
  }
}

.description, label {
  font-family: sans-serif;
  font-size: 0.9rem;
  letter-spacing: 0.2px;
  line-height: 1.2rem;
}

[type="checkbox"] {
  display: none;
  + label {
    margin-bottom: 0.5rem;
    display: inline-block;
    &::before {
      content: '';
      display: inline-block;
      width: 0.6rem;
      height: 0.6rem;
      border-radius: 2px;
      border: 1px solid var(--background-color);
      margin-right: 0.4rem;
      transition: 0.2s;
    }
    &:hover {
      cursor: pointer;
    }
  }
  &:checked + label::before {
    background-color: var(--background-color);
    box-shadow: 0 0 0 1px white inset;
  }
}

#am-pm {
  display: none;
  &.visible {
    display: initial;
  }
}

button {
  border: 0.5px solid var(--background-color);
  color: var(--background-color);
  padding: 0.4rem;
  font-size: 0.9rem;
  transition: 0.1s;
  margin-top: 1rem;
  &:hover {
    cursor: pointer;
    background-color: var(--background-color);
    color: white;
  }
}
              
            
!

JS

              
                function recursivelyAddOption(start, amt, cont){
  var container = document.getElementById(cont);
  container.innerHTML = '';
  for(var i = start; i <= amt; i++){
    var opt = document.createElement('option');
    opt.id = cont + '-' + i;
    opt.textContent = i.toString().length === 1 && cont !== 'hours' ? '0' + i.toString() : i;
    container.appendChild(opt);
  }
}

function getMaximumValue(id){
  var opts = document.getElementById(id).querySelectorAll('option');
  var select_vals = Array.prototype.map.call(opts, function(elm){
    return parseInt(elm.value);
  });
  return select_vals.sort(function(a, b){ return a - b })[select_vals.length - 1];
}

function convertTimeToRGB(value, id){
  return value * 255 / getMaximumValue(id);
}

window.onload = function(){
  recursivelyAddOption(1, 12, 'hours');
  recursivelyAddOption(0, 59, 'minutes');
  recursivelyAddOption(0, 59, 'seconds');
  var select_elms = document.querySelectorAll('select');
  document.getElementById('military-time-toggle').addEventListener('change', function(ev){
    var am_pm_elm = document.getElementById('am-pm');
    if(!ev.target.checked){
      recursivelyAddOption(1, 12, 'hours');
      am_pm_elm.className = 'visible';
    } else {
      recursivelyAddOption(0, 23, 'hours');
      am_pm_elm.className = '';
    }
  });
  Array.prototype.forEach.call(select_elms, function(elm){
    elm.addEventListener('change', function(ev){
      var hrs = parseInt(document.getElementById('hours').value);
      if(!document.getElementById('military-time-toggle').checked){
        console.log(document.getElementById('am-pm').value);
        hrs += document.getElementById('am-pm').value === 'PM' ? 12 : 0;
      } 
      var mins = parseInt(document.getElementById('minutes').value);
      var secs = parseInt(document.getElementById('seconds').value);
      document.documentElement.style.setProperty('--background-color', 'rgb(' + convertTimeToRGB(hrs, 'hours') + ',' + convertTimeToRGB(mins, 'minutes') + ',' + convertTimeToRGB(secs, 'seconds') + ')');
    });
  });
  
  document.getElementById('use-my-time').addEventListener('click', function(){
    var time = new Date();
    var hrs = time.getHours();
    if(!document.getElementById('military-time-toggle').checked){
      var am_pm = hrs > 12 ? 'PM' : 'AM';
      hrs -= hrs > 12 ? 12 : 0;
      document.getElementById('am-pm').value = am_pm;
    }
    var mins = time.getMinutes();
    var secs = time.getSeconds();
    document.getElementById('hours').value = hrs;
    document.getElementById('minutes').value = mins.toString().length === 1 ? '0' + mins.toString() : mins;
    document.getElementById('seconds').value = secs.toString().length === 1 ? '0' + secs.toString() : secs;
    document.documentElement.style.setProperty('--background-color', 'rgb(' + convertTimeToRGB(hrs, 'hours') + ',' + convertTimeToRGB(mins, 'minutes') + ',' + convertTimeToRGB(secs, 'seconds') + ')');
  });
}
              
            
!
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