SwiftUI Easy Timers with Text

EasyTimersWithText.swift

import SwiftUI

struct ContentView: View {

    @State var startDate: Date = .now
    @State var countDownEndDate: Date?

    var body: some View {
        VStack(spacing: 16.0) {
            Text("Duration:")
                .font(.title2)
            Text(startDate, style: .timer)
                .font(.title3)
            Button {
                countDownEndDate = Calendar.current.date(byAdding: .second, value: 600, to: .now)!
            } label: {
                Text("Start Countdown")
                    .font(.title2)
            }
            if let countDownEndDate {
                let range = Date.now...countDownEndDate
                Text(timerInterval: range, countsDown: false)
                    .font(.title3)
            }
        }
        .padding()
    }
}

#Preview {
    ContentView()
}