EpochToReadableDates.swift

func getReadableDate(timeStamp: TimeInterval) -> String? {
    let date = Date(timeIntervalSince1970: timeStamp)
    let dateFormatter = DateFormatter()
    
    if Calendar.current.isDateInTomorrow(date) {
        return "Tomorrow"
    } else if Calendar.current.isDateInYesterday(date) {
        return "Yesterday"
    } else if dateFallsInCurrentWeek(date: date) {
        if Calendar.current.isDateInToday(date) {
            dateFormatter.dateFormat = "h:mm a"
            return dateFormatter.string(from: date)
        } else {
            dateFormatter.dateFormat = "EEEE"
            return dateFormatter.string(from: date)
        }
    } else {
        dateFormatter.dateFormat = "MMM d, yyyy"
        return dateFormatter.string(from: date)
    }
}

func dateFallsInCurrentWeek(date: Date) -> Bool {
    let currentWeek = Calendar.current.component(Calendar.Component.weekOfYear, from: Date())
    let datesWeek = Calendar.current.component(Calendar.Component.weekOfYear, from: date)
    return (currentWeek == datesWeek)
}