Current Day and Month calendar style view for SwiftUI with Date() extension to retrieve the values as strings.

DayMonthView.swift

struct DayMonthView: View {
    
    @State var monthString = Date().getMonthString()
    
    @State var dayString = Date().getDayString()
    
    var body: some View {
        VStack {
            Text(monthString)
                .foregroundColor(Color.red)
            Text(dayString)
                .font(.system(size: 64))
                .minimumScaleFactor(0.01)
        } // vstack
        .frame(width: 128, height: 128, alignment: .center)
        .overlay(
               RoundedRectangle(cornerRadius: 16)
                .stroke(Color.black, lineWidth: 4)
                
           )
    }
}

extension Date {
     func getMonthString() -> String {
        let dateFormatter = DateFormatter()
        dateFormatter.dateFormat = "MMM"
        
        let month = dateFormatter.string(from: Date())
        return month.uppercased()
    }
    
    func getDayString() -> String {
        
        let dateFormatter = DateFormatter()
        dateFormatter.dateFormat = "dd"
        
        let day = dateFormatter.string(from: Date())
        
        return day
        
    }


}