const eventDate = new Date("2026-06-28T09:30:00Z");

const displayTargets = [
  { locale: "en-US", timeZone: "America/New_York" },
  { locale: "en-GB", timeZone: "Europe/London" },
  { locale: "de-DE", timeZone: "Europe/Berlin" },
];

function formatEventDate(date, { locale, timeZone }) {
  const formatter = new Intl.DateTimeFormat(locale, {
    dateStyle: "full",
    timeStyle: "short",
    timeZone,
  });

  return `${locale} (${timeZone}): ${formatter.format(date)}`;
}

for (const target of displayTargets) {
  console.log(formatEventDate(eventDate, target));
}