OK here is what you can do, start a timer , update onreceive of timer every second, once the view is about to disappear . stop the process, remember to stop the timer once you leave the view ie on its disappear modifier , this way you get continuos updates with out need for refresh ... hope it helps

struct ContentView: View {
    @State var currentDate = Date()
    let timer = Timer.publish(every: 1, on: .main, in: .common).autoconnect()

    var body: some View {
        Text("\(currentDate)")
            .onReceive(timer) { input in
                currentDate = input
            }
    }
}