SV4,
<!DOCTYPE html>
<html>
<head>
<title>Untitled</title>
<meta charset="utf-8">
</script>
<script>
window.addEventListener("DOMContentLoaded", function() {
var img = document.querySelectorAll(".red"),
src = ["http://www.fotoshans.ru/upload/iblock/093/09352096e4184d4bbc657a50573cab38.jpg",
"http://www.fotoshans.ru/upload/iblock/162/16205ec9be50d5be620bb985857e6ba7.png"],
minutes = 5;
requestAnimationFrame(function e() {
var url = src[+((new Date).getMinutes() < minutes)];
[].forEach.call(img, function(el) {
el.src = url
});
requestAnimationFrame(e)
})
});
</script>
</head>
<body>
<img src="" alt="" class="red">
<img src="" alt="" class="red">
<img src="" alt="" class="red">
<img src="" alt="" class="red">
<img src="" alt="" class="red">
</body>
</html>