archtika/web-app/src/lib/components/DateTime.svelte

<script lang="ts">
  const { date }: { date: Date } = $props();

  const options: Intl.DateTimeFormatOptions = {
    year: "numeric",
    month: "2-digit",
    day: "2-digit",
    hour: "2-digit",
    minute: "2-digit",
    second: "2-digit"
  };
</script>

<time datetime={date.toLocaleString("sv").replace(" ", "T")}>
  {date.toLocaleString("en-us", { ...options })}
</time>