moment-winter-summer

HTML

<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.29.1/moment.min.js"></script>
<script src="https://momentjs.com/downloads/moment-timezone-with-data-10-year-range.min.js"></script>
<ul>

JavaScript

const date = "2020-11-01";

for (let i = 0; i < 24; i++) {
  const utcString = moment
      .tz(`${date} ${i}`, "YYYY-MM-DD H", "America/Toronto")
      .toDate()
      .toUTCString();
  console.log(i, utcString);
  document.write(`<li>${i} - ${utcString}</li>`)
}