How to do Snooze Notification in Android?

Question

Java

I have delayed Notifications on my phone in my application (12:00, 17:00, 21:00)
I start a notification according to the scheme AlarmManager -> BroadcastReceiver -> NotificationService -> create and start Notivication.
I check on 3 versions of android: [4.3], [7.1], [9.0]
[4.3] + [7.1] : regularly sends notifications without warning even when checking the time change in the settings when the application is closed
[9.0] : crashes ( it sends and sometimes does not send notifications) when changing the time or date, nothing happens at all
The problem is not clear why everything works intermittently
NotificationHelper

class NotificationHelper(var ctx: Context, var id: Int) {

    private lateinit var mNotificationManager: NotificationManager
    private lateinit var mBuilder: NotificationCompat.Builder
    private val NOTIFICATION_CHANNEL_NAME = "Diets"

    fun creatNotivication(title: String, message: String) {
        val intentResult = Intent(ctx, MainActivity::class.java )
        intentResult.flags = Intent.FLAG_ACTIVITY_NEW_TASK
        val peddingIntent: PendingIntent = PendingIntent.getActivities(ctx,0, arrayOf(intentResult),PendingIntent.FLAG_UPDATE_CURRENT)

        mBuilder = NotificationCompat.Builder(ctx, "$id")
        mBuilder.setSmallIcon(com.papaya.diets.R.drawable.notification_icon)
        mBuilder.setContentTitle(title)
            .setContentText(message)
            .setAutoCancel(false)
            .setSound(Settings.System.DEFAULT_NOTIFICATION_URI)
            .setContentIntent(peddingIntent)

        mNotificationManager = ctx.getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager

        if(android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.O) {
            var importance = NotificationManager.IMPORTANCE_HIGH
            var notificationChannel = NotificationChannel("$id" ,NOTIFICATION_CHANNEL_NAME, importance)
            notificationChannel.enableLights(true)
            notificationChannel.lightColor = Color.RED
            notificationChannel.enableVibration(true)
            notificationChannel.vibrationPattern = longArrayOf(100, 200, 300, 400, 500, 400, 300, 200, 400)
            mBuilder.setChannelId("$id")
            mNotificationManager.createNotificationChannel(notificationChannel)
        }
        mNotificationManager.notify(id, mBuilder.build())
    }
}

Alarm in MainActivity

fun startNotification(ctx: Context, id: Int, hours: Int, interval: Long, countCup: Int) {
        var notificationIntent = Intent(ctx, NotificationReceiver::class.java)
        notificationIntent.putExtra("countCups", countCup)
        notificationIntent.putExtra("notifId", id)
        notificationIntent.putExtra("hours", hours)
        notificationIntent.addFlags(Intent.FLAG_RECEIVER_FOREGROUND)
        val pendingIntent = PendingIntent.getBroadcast(ctx, id, notificationIntent, PendingIntent.FLAG_UPDATE_CURRENT)


//        val calundar2 = Helper().createCurrentCalendarTime()
        val calendar = Calendar.getInstance()
        calendar.set(Calendar.HOUR_OF_DAY, hours)
        calendar.set(Calendar.MINUTE, 0)
        calendar.set(Calendar.SECOND, 0)
//        if (calendar.compareTo(calundar2) < 0) {
//            calendar.add(Calendar.DATE, 1)
//        }
        Log.v("Notification", "alarm ${calendar.time} notification start")
        var alarmManager = ctx.getSystemService(Context.ALARM_SERVICE) as AlarmManager
        alarmManager.cancel(pendingIntent)

        alarmManager.setRepeating(
            AlarmManager.RTC_WAKEUP,
            calendar.timeInMillis,
            AlarmManager.INTERVAL_DAY,
            pendingIntent
        )
    }

NotificationReceiver

class NotificationReceiver : BroadcastReceiver() {

    override fun onReceive(context: Context, intent: Intent) {

                val id = intent.extras!!.getInt("notifId")
                val countCups = intent.extras!!.getInt("countCups")
                val hours = intent.extras!!.getInt("hours")
                val intent1 = Intent(context, NotificationService::class.java)
                intent1.putExtra("notifId", id)
                intent1.putExtra("countCups", countCups)
                intent1.putExtra("hours", hours)
                context.startService(intent1)
                println("BroadcastReceiver START TEST")

}
}

NotificationService

class NotificationService : IntentService("Notify") {
    override fun onHandleIntent(intent: Intent?) {
        println("SERVICE START TEST")
        val id = intent!!.extras!!.getInt("notifId")
        val count = intent.extras!!.getInt("countCups")
        val hours = intent.extras!!.getInt("hours")
        val water = RealmHelper().changeWaterCup()
        var countCups = 0

        water!!.forEach {
            if (it) {
                countCups = countCups.plus(1)
            }
        }

        if (countCups < count) {
            println("notificaion $id")
            NotificationHelper(applicationContext, id).creatNotivication(
                "Пора выпить воды",
                "Не забудьте отметить выпитый стаканчик в приложении"
            )
        }
    }
}

Manifest

<uses-permission android:name="android.permission.INTERNET"/>
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
    <uses-permission android:name="android.permission.CAMERA"/>
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
    <uses-permission android:name="android.permission.SET_ALARM"/>
    <uses-permission android:name="android.permission.WAKE_LOCK"/>
    <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"/>
    <uses-feature android:name="android.hardware.camera"/>

<receiver android:name=".Service.NotificationReceiver">
            <intent-filter>
                <action android:name="android.intent.action.BOOT_COMPLETED"/>
                <action android:name="android.intent.action.QUICKBOOT_POWERON"/>
            </intent-filter>
        </receiver>

        <service
                android:name=".Service.NotificationService"
                android:enabled="true"
                android:exported="false">
            <intent-filter>
                <action android:name="NOTIFICATION_SERVICE"/>
            </intent-filter>
        </service>