function addToCalendar() {

  // Event details

  var eventName = "Meeting with Client";

  var eventLocation = "Office";

  var eventStartDate = new Date("2023-07-10T09:00:00");

  var eventEndDate = new Date("2023-07-10T10:00:00");

​

  // Format the dates as UTC strings

  var startDateUTC = eventStartDate.toISOString();

  var endDateUTC = eventEndDate.toISOString();

​

  // Build the calendar event URL

  var calendarURL = "data:text/calendar;charset=utf-8," + encodeURIComponent(

    "BEGIN:VCALENDAR\n" +

    "VERSION:2.0\n" +

    "BEGIN:VEVENT\n" +

    "SUMMARY:" + eventName + "\n" +

    "LOCATION:" + eventLocation + "\n" +

    "DTSTART:" + startDateUTC + "\n" +

    "DTEND:" + endDateUTC + "\n" +

    "END:VEVENT\n" +

    "END:VCALENDAR");

​

  // Open the calendar URL in a new tab or window

  window.open(calendarURL);

}

​