How to set the camera time in C#

using System;
using System.Drawing;
using System.Windows.Forms;
using Ozeki.Media;
using Ozeki.Camera;

namespace ConfigureOnvifCameraRemotely02
{
    public partial class Form1 : Form
    {
        private IIPCamera _camera;
        private DrawingImageProvider _imageProvider;
        private MediaConnector _connector;
        private VideoViewerWF _videoViewerWf;

        public Form1()
        {
            InitializeComponent();
            _connector = new MediaConnector();
            _imageProvider = new DrawingImageProvider();
            _videoViewerWf = new VideoViewerWF();
            SetVideoViewer();
            comboBox_Zone.DataSource = TimeZoneInfo.GetSystemTimeZones();
        }

        private void SetVideoViewer()
        {
            CameraBox.Controls.Add(_videoViewerWf);
            _videoViewerWf.Size = new Size(260, 180);
            _videoViewerWf.BackColor = Color.Black;
            _videoViewerWf.TabStop = false;
            _videoViewerWf.FlipMode = FlipMode.None;
            _videoViewerWf.Location = new Point(30, 30);
            _videoViewerWf.Name = "_videoViewerWf";
        }

        private void button_Connect_Click(object sender, EventArgs e)
        {
            _camera = new IPCamera("192.168.112.109:8080", "user", "qwe123");
            _connector.Connect(_camera.VideoChannel, _imageProvider);
            _videoViewerWf.SetImageProvider(_imageProvider);
            _videoViewerWf.Start();
            _camera.Start();
        }

        private void button_SetDateTime_Click(object sender, EventArgs e)
        {
            CameraDateTimeSetter config;

            if (radioButton_UTC.Checked)
            {
                var datetime = DateTime.UtcNow;
                config = new CameraDateTimeSetter(true)
                {
                    TimeZoneInfo = (TimeZoneInfo)comboBox_Zone.SelectedItem,
                    UTCDate = new IPCameraDate(datetime.Year, datetime.Month, datetime.Day),
                    UTCTime = new IPCameraTime(datetime.Hour, datetime.Minute, datetime.Second)
                };
            }
            else
            {
                var date = dateTimePicker_Date.Value;
                var time = dateTimePicker_Time.Value;
                config = new CameraDateTimeSetter(true)
                {
                    TimeZoneInfo = TimeZoneInfo.FindSystemTimeZoneById("UTC"), // UTC + 0
                    UTCDate = new IPCameraDate(date.Year, date.Month, date.Day),
                    UTCTime = new IPCameraTime(time.Hour, time.Minute, time.Second)
                };
            }
            _camera.DateAndTime.SetAttributes(config);
            _camera.DateAndTime.RefreshProperties();
        }
    }
}
		

using System;
using System.Text;
using System.Windows;
using Ozeki.Media;
using Ozeki.Camera;

namespace ConfigureOnvifCameraRemotely02Wpf
{
    /// 

    /// Interaction logic for MainWindow.xaml
    /// 
    public partial class MainWindow : Window
    {
        private IIPCamera _camera;
        private DrawingImageProvider _drawingImageProvider;
        private MediaConnector _connector;

        public MainWindow()
        {
            InitializeComponent();

            _drawingImageProvider = new DrawingImageProvider();
            _connector = new MediaConnector();
            videoViewer.SetImageProvider(_drawingImageProvider);
            comboBox_Zone.ItemsSource = TimeZoneInfo.GetSystemTimeZones();
        }

        private void Connect_Click(object sender, RoutedEventArgs e)
        {
            _camera = new IPCamera("192.168.112.109:8080", "user", "qwe123");

            _connector.Connect(_camera.VideoChannel, _drawingImageProvider);
            videoViewer.Start();
            _camera.Start();
        }

        private void button_SetDateTime_Click(object sender, RoutedEventArgs e)
        {
            try
            {
                CameraDateTimeSetter config;

                if (radioButton_UTC.IsChecked == true)
                {
                    var datetime = DateTime.UtcNow;
                    config = new CameraDateTimeSetter(true)
                    {
                        TimeZoneInfo = (TimeZoneInfo)comboBox_Zone.SelectedItem,
                        UTCDate = new IPCameraDate(datetime.Year, datetime.Month, datetime.Day),
                        UTCTime = new IPCameraTime(datetime.Hour, datetime.Minute, datetime.Second)
                    };
                }
                else
                {
                    var date = dateTimePicker_Date.SelectedDate.Value;
                    var split = textBox_Time.Text.Split(':');
                    var time = new DateTime(date.Year, date.Month, date.Day, int.Parse(split[0]), int.Parse(split[1]),
                        int.Parse(split[2]));
                    config = new CameraDateTimeSetter(true)
                    {
                        TimeZoneInfo = TimeZoneInfo.FindSystemTimeZoneById("UTC"), // UTC + 0
                        UTCDate = new IPCameraDate(date.Year, date.Month, date.Day),
                        UTCTime = new IPCameraTime(time.Hour, time.Minute, time.Second)
                    };
                }
                _camera.DateAndTime.SetAttributes(config);
                _camera.DateAndTime.RefreshProperties();
            }
            catch (Exception exception)
            {
                MessageBox.Show(exception.Message);
            }
        }
    }
}
		

<Window x:Class="ConfigureOnvifCameraRemotely02Wpf.MainWindow"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:controls="clr-namespace:Ozeki.Media;assembly=OzekiSDK"
    Title="Configuring Onvif Camera Time" Height="510" Width="340" ResizeMode="CanMinimize" WindowStartupLocation="CenterScreen">
<Grid>
    <GroupBox Header="Live camera" HorizontalAlignment="Left" Margin="10,37,0,0" VerticalAlignment="Top" Height="226" Width="308">
        <Grid HorizontalAlignment="Left" Height="204" VerticalAlignment="Top" Width="296">
            <controls:VideoViewerWPF Name="videoViewer" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Background="Black"/>
        </Grid>
    </GroupBox>
    <Button Content="Connect" HorizontalAlignment="Left" Margin="10,10,0,0" VerticalAlignment="Top" Width="75" RenderTransformOrigin="-0.107,-0.364" Click="Connect_Click"/>
    <GroupBox Header="Set camera time" HorizontalAlignment="Left" Margin="10,268,0,0" VerticalAlignment="Top" Height="193" Width="308">
        <Grid>
            <Grid.RowDefinitions>
                <RowDefinition Height="0.8*"/>
               	<RowDefinition Height="0.5*"/>
                <RowDefinition Height="*"/>
                <RowDefinition Height="Auto"/>
            </Grid.RowDefinitions>
            <Grid Grid.Row="0">
                <Grid.ColumnDefinitions>
                    <ColumnDefinition Width="60"/>
                    <ColumnDefinition Width="*"/>
                </Grid.ColumnDefinitions>
                <Label Grid.Column="0" Content="Zone" VerticalAlignment="Center"/>
                <ComboBox x:Name="comboBox_Zone" Grid.Column="1" Height="30"/>
            </Grid>
            <Grid Grid.Row="1">
                <Grid.ColumnDefinitions>
                    <ColumnDefinition Width="*"/>
                    <ColumnDefinition Width="*"/>
                </Grid.ColumnDefinitions>
                <RadioButton x:Name="radioButton_UTC" GroupName="TimeGroup" HorizontalAlignment="Center" VerticalAlignment="Center" Grid.Column="0" Content="Use UTC" IsChecked="True"/>
                <RadioButton GroupName="TimeGroup" HorizontalAlignment="Center" VerticalAlignment="Center" Grid.Column="1" Content="Set UTC manually"/>
            </Grid>
            <Grid Grid.Row="2">
                <Grid.RowDefinitions>
                    <RowDefinition Height="*"/>
                    <RowDefinition Height="*"/>
                </Grid.RowDefinitions>
                <Grid Grid.Row="0">
                    <Grid.ColumnDefinitions>
                        <ColumnDefinition Width="105"/>
                        <ColumnDefinition Width="*"/>
                    </Grid.ColumnDefinitions>
                    <Label Grid.Column="0" Content="Date"/>
                    <DatePicker x:Name="dateTimePicker_Date" Grid.Column="1" SelectedDateFormat="Long"/>
                </Grid>
                <Grid Grid.Row="1">
                    <Grid.ColumnDefinitions>
                        <ColumnDefinition Width="105"/>
                        <ColumnDefinition Width="*"/>
                    </Grid.ColumnDefinitions>
                    <Label Grid.Column="0" Content="Time (HH:MM:SS)"/>
                    <TextBox x:Name="textBox_Time" Grid.Column="1"/>
                </Grid>
            </Grid>
            <Button Grid.Row="3" Height="25" Width="60" HorizontalAlignment="Right" Content="Set" Click="button_SetDateTime_Click"/>
        </Grid>
    </GroupBox>
</Grid>
</Window>