Format column header dates in FullCalendar

Question

I\'ve been trying to change the format of the dates that appear in the day column headers on the Fullcalendar week/timegrid view:

I\'m using V5 in conjuctio

Answer 1

dayHeaderContent: (args) => {
    return moment(args.date).format('ffffd Do')
}

The new function supplies args instead of date object. So you access them with args.date and then format using moment