I have two pickers for startTime and EndTime that default to Date.now but currently the user can make the endTime come before the start time, how do you prevent this?

@State private var workoutName: String = ""
@State private var workoutStartTime: Date = Date.now
@State private var workoutEndTime: Date = Date.now

@State private var showExercieSheet = false

 
var body: some View {
VStack {
    List {
        Section(header: Text("Workout Details")) {
            
            TextField("Enter workout name",text: $workoutName)
            DatePicker("Start Time", selection: $workoutStartTime)
            DatePicker("End Time", selection: $workoutEndTime)
            
        

}