diff --git a/src/BreCalClient/EditTimesControl.xaml b/src/BreCalClient/EditTimesControl.xaml
index 03cac40..870c9c9 100644
--- a/src/BreCalClient/EditTimesControl.xaml
+++ b/src/BreCalClient/EditTimesControl.xaml
@@ -7,7 +7,7 @@
         xmlns:p = "clr-namespace:BreCalClient.Resources"
         xmlns:xctk="http://schemas.xceed.com/wpf/xaml/toolkit"
         mc:Ignorable="d"  Left="{local:SettingBinding W1Left}" Top="{local:SettingBinding W1Top}"
-        Title="{x:Static p:Resources.textEditTimes}" Height="331" Width="500" Loaded="Window_Loaded" ResizeMode="CanResizeWithGrip" Icon="Resources/containership.ico">
+        Title="{x:Static p:Resources.textEditTimes}" Height="415" Width="500" Loaded="Window_Loaded" ResizeMode="CanResizeWithGrip" Icon="Resources/containership.ico">
     <Grid>
         <Grid.ColumnDefinitions>
             <ColumnDefinition Width=".20*" />
@@ -22,6 +22,9 @@
             <RowDefinition Height="28" />
             <RowDefinition Height="28" />
             <RowDefinition Height="28" />
+            <RowDefinition Height="28" x:Name="rowt1" />
+            <RowDefinition Height="28" x:Name="rowt2" />
+            <RowDefinition Height="28" x:Name="rowt3" />
             <RowDefinition Height="*" />
             <RowDefinition Height="28" />
         </Grid.RowDefinitions>
@@ -35,8 +38,10 @@
         <Label Grid.Row="4" Grid.Column="0" Content="ATD" HorizontalContentAlignment="Right" x:Name="labelATD" />
         <Label Grid.Row="5" Grid.Column="0" Content="{x:Static p:Resources.textLockTime}" HorizontalContentAlignment="Right" />
         <Label Grid.Row="6" Grid.Column="0" Content="{x:Static p:Resources.textZoneEntryTime}" HorizontalContentAlignment="Right" />
-
-        <Label Grid.Row="7" Grid.Column="0" Content="{x:Static p:Resources.textRemarks}" HorizontalContentAlignment="Right" />
+        <Label Grid.Row="7" Grid.Column="0" Content="{x:Static p:Resources.textTidalWindow}" HorizontalContentAlignment="Right" />
+        <Label Grid.Row="8" Grid.Column="0" Content="{x:Static p:Resources.textFrom}" HorizontalContentAlignment="Right" />
+        <Label Grid.Row="9" Grid.Column="0" Content="{x:Static p:Resources.textTo}" HorizontalContentAlignment="Right" />
+        <Label Grid.Row="10" Grid.Column="0" Content="{x:Static p:Resources.textRemarks}" HorizontalContentAlignment="Right" />
 
         <Grid Grid.Row="1" Grid.Column="1">
             <Grid.ColumnDefinitions>
@@ -137,7 +142,7 @@
                 </ContextMenu>
             </xctk:DateTimePicker.ContextMenu>
         </local:DateTimePickerExt>
-        <!--CheckBox IsEnabled="False" Grid.Row="3" Grid.Column="2" Margin="4,0,0,0" Name="checkBoxLockTimeFixed" VerticalAlignment="Center" /-->
+        
         <local:DateTimePickerExt IsEnabled="False" Grid.Row="6" Grid.Column="1" Margin="2" x:Name="datePickerZoneEntry" Format="Custom" FormatString="dd.MM. yyyy  HH:mm">
             <xctk:DateTimePicker.ContextMenu>
                 <ContextMenu>
@@ -149,10 +154,12 @@
                 </ContextMenu>
             </xctk:DateTimePicker.ContextMenu>
         </local:DateTimePickerExt>
-        <!--CheckBox IsEnabled="False" Grid.Row="4" Grid.Column="2" Margin="4,0,0,0" Name="checkBoxZoneEntryFixed" VerticalAlignment="Center" /-->
+        
+        <xctk:DateTimePicker Name="datePickerTidalWindowFrom" Grid.Column="1" Grid.Row="8" Margin="2" IsEnabled="False" Format="Custom" FormatString="dd.MM. yyyy  HH:mm"/>
+        <xctk:DateTimePicker Name="datePickerTidalWindowTo" Grid.Column="1" Grid.Row="9" Margin="2" IsEnabled="False" Format="Custom" FormatString="dd.MM. yyyy  HH:mm"/>
 
-        <TextBox Grid.Row="7" Grid.Column="1" Margin="2" Name="textBoxRemarks" TextWrapping="Wrap" AcceptsReturn="True" SpellCheck.IsEnabled="True" AcceptsTab="False" IsReadOnly="True" MaxLength="512"/>
-        <StackPanel Grid.Row="8" Grid.Column="1" Grid.ColumnSpan="2" Orientation="Horizontal" HorizontalAlignment="Right">
+        <TextBox Grid.Row="10" Grid.Column="1" Margin="2" Name="textBoxRemarks" TextWrapping="Wrap" AcceptsReturn="True" SpellCheck.IsEnabled="True" AcceptsTab="False" IsReadOnly="True" MaxLength="512"/>
+        <StackPanel Grid.Row="11" Grid.Column="1" Grid.ColumnSpan="2" Orientation="Horizontal" HorizontalAlignment="Right">
             <Button Width= "80" Margin="2" Content="{x:Static p:Resources.textOK}" x:Name="buttonOK" Click="buttonOK_Click" />
             <Button Width="80" Margin="2" Content="{x:Static p:Resources.textCancel}" x:Name="buttonCancel" Click="buttonCancel_Click"/>
             <Button Width="28" x:Name="buttonClearAll" Click="buttonClearAll_Click" Margin="2" IsEnabled="False">
diff --git a/src/BreCalClient/EditTimesControl.xaml.cs b/src/BreCalClient/EditTimesControl.xaml.cs
index aa0c3bf..23f277d 100644
--- a/src/BreCalClient/EditTimesControl.xaml.cs
+++ b/src/BreCalClient/EditTimesControl.xaml.cs
@@ -86,6 +86,8 @@ namespace BreCalClient
                 this.datePickerLockTime.Value = null;
                 this.datePickerZoneEntry.Value = null;
                 this.textBoxRemarks.Text = null;
+                this.datePickerTidalWindowFrom.Value = null;
+                this.datePickerTidalWindowTo.Value = null;
             }
         }
 
@@ -153,6 +155,30 @@ namespace BreCalClient
                 return false;
             }
 
+            if ((Extensions.ParticipantType)this.Times.ParticipantType == Extensions.ParticipantType.PILOT)
+            {
+                if ((this.datePickerTidalWindowFrom.Value != this.ShipcallModel.Shipcall?.TidalWindowFrom) || (this.datePickerTidalWindowTo.Value != this.ShipcallModel.Shipcall?.TidalWindowTo)) // something has changed
+                {
+                    if (datePickerTidalWindowTo.Value.IsTooOld() || this.datePickerTidalWindowFrom.Value.IsTooOld())
+                    {
+                        message = BreCalClient.Resources.Resources.textTideTimesInThePast;
+                        return false;
+                    }
+
+                    if (this.datePickerTidalWindowFrom.Value.HasValue && this.datePickerTidalWindowTo.Value.HasValue && this.datePickerTidalWindowFrom.Value > this.datePickerTidalWindowTo.Value)
+                    {
+                        message = BreCalClient.Resources.Resources.textEndValueBeforeStartValue;
+                        return false;
+                    }
+
+                    if ((this.datePickerTidalWindowFrom.Value.HasValue && !this.datePickerTidalWindowTo.Value.HasValue) || (!this.datePickerTidalWindowFrom.Value.HasValue && this.datePickerTidalWindowTo.Value.HasValue))
+                    {
+                        message = BreCalClient.Resources.Resources.textTidalBothValues;
+                        return false;
+                    }
+                }
+            }
+
             return true;
         }
 
@@ -167,6 +193,13 @@ namespace BreCalClient
             this.Times.ZoneEntry = this.datePickerZoneEntry.Value;
             this.Times.Ata = this.datePickerATA.Value;
             this.Times.Atd = this.datePickerATD.Value;
+
+            Extensions.ParticipantType pType = (Extensions.ParticipantType)this.Times.ParticipantType;
+            if ((pType == Extensions.ParticipantType.PILOT) && this.ShipcallModel.Shipcall != null)
+            {
+                this.ShipcallModel.Shipcall.TidalWindowFrom = this.datePickerTidalWindowFrom.Value;
+                this.ShipcallModel.Shipcall.TidalWindowTo = this.datePickerTidalWindowTo.Value;
+            }
         }
 
         private void CopyToControls()
@@ -218,6 +251,19 @@ namespace BreCalClient
                 }
             }
 
+            Extensions.ParticipantType pType = (Extensions.ParticipantType)this.Times.ParticipantType;
+            if ((pType == Extensions.ParticipantType.PILOT) && this.ShipcallModel.Shipcall != null)
+            {
+                this.datePickerTidalWindowFrom.Value = this.ShipcallModel.Shipcall.TidalWindowFrom;
+                this.datePickerTidalWindowTo.Value = this.ShipcallModel.Shipcall.TidalWindowTo;                
+            } 
+            else
+            {
+                this.rowt1.Height = new(0);
+                this.rowt1.Height = new(0);
+                this.rowt1.Height = new(0);
+            }
+
             this.SetLockButton(this.Times.EtaBerthFixed ?? false);
         }
 
@@ -283,8 +329,12 @@ namespace BreCalClient
                     this.datePickerLockTime.IsEnabled = true;
                     break;
                 case Extensions.ParticipantType.TUG:
+                    this.datePickerZoneEntry.IsEnabled = (ShipcallModel.Shipcall?.Type == ShipcallType.Arrival);
+                    break;
                 case Extensions.ParticipantType.PILOT:
                     this.datePickerZoneEntry.IsEnabled = (ShipcallModel.Shipcall?.Type == ShipcallType.Arrival);
+                    this.datePickerTidalWindowFrom.IsEnabled = true;
+                    this.datePickerTidalWindowTo.IsEnabled = true;
                     break;
             }
         }
diff --git a/src/BreCalClient/MainWindow.xaml.cs b/src/BreCalClient/MainWindow.xaml.cs
index c7f2ce2..08b85c7 100644
--- a/src/BreCalClient/MainWindow.xaml.cs
+++ b/src/BreCalClient/MainWindow.xaml.cs
@@ -1073,6 +1073,13 @@ namespace BreCalClient
                         etc.Times.Id = apiResultId.VarId;
                         obj.ShipcallControlModel?.Times.Add(etc.Times);
                     }
+
+                    // a pilot may have changed the tidal window so we update the shipcall too in this case
+                    if(((Extensions.ParticipantType)etc.Times.ParticipantType) == ParticipantType.PILOT)
+                    {
+                        await _shipcallApi.ShipcallUpdateAsync(obj.ShipcallControlModel?.Shipcall);
+                    }
+
                     _refreshImmediately = true;
                     _tokenSource.Cancel();
                 }