apricote.de/layouts/partials/extend_head.html

<script async>
  // When document is ready, find relative-date elements and use relative date format
  document.addEventListener("readystatechange", (event) => {
    if (event.target.readyState !== "complete") {
      return;
    }

    const formatter = new Intl.RelativeTimeFormat("en-US", {
      numeric: "auto",
    });

    const elements = document.querySelectorAll(".relative-date");

    elements.forEach((element) => {
      let date;
      try {
        date = new Date(element.innerText);
      } catch (err) {
        console.error("Element does have a proper date");
        return;
      }

      const diffMs = date - new Date();
      const daysSince = diffMs / 1000 / 60 / 60 / 24;
      const formatted = formatter.format(daysSince, "days");
      const capitalized =
        formatted.charAt(0).toUpperCase() + formatted.slice(1);

      element.innerText = capitalized;
    });
  });
</script>