diff --git a/components/fpspreadsheet/examples/visual/fpschart/fpschartlink/main.pas b/components/fpspreadsheet/examples/visual/fpschart/fpschartlink/main.pas
index c6c8f3ca6..2ec734caf 100644
--- a/components/fpspreadsheet/examples/visual/fpschart/fpschartlink/main.pas
+++ b/components/fpspreadsheet/examples/visual/fpschart/fpschartlink/main.pas
@@ -64,8 +64,11 @@ end;
 
 procedure TForm1.ComboBox1CloseUp(Sender: TObject);
 begin
-  Combobox1.Text := Combobox1.Items[Combobox1.ItemIndex];
-  LoadFile(Combobox1.Text);
+  if ComboBox1.ItemIndex > -1 then
+  begin
+    Combobox1.Text := Combobox1.Items[Combobox1.ItemIndex];
+    LoadFile(Combobox1.Text);
+  end;
 end;
 
 procedure TForm1.FormCreate(Sender: TObject);
diff --git a/components/fpspreadsheet/source/common/fpschart.pas b/components/fpspreadsheet/source/common/fpschart.pas
index a87ff87b9..1b5dd4050 100644
--- a/components/fpspreadsheet/source/common/fpschart.pas
+++ b/components/fpspreadsheet/source/common/fpschart.pas
@@ -247,6 +247,8 @@ type
     FInverted: Boolean;
     FLabelFont: TsFont;
     FLabelFormat: String;
+    FLabelFormatFromSource: Boolean;
+    FLabelFormatDateTime: String;
     FLabelFormatPercent: String;
     FLabelRotation: Integer;
     FLogarithmic: Boolean;
@@ -274,6 +276,8 @@ type
     property Inverted: Boolean read FInverted write FInverted;
     property LabelFont: TsFont read FLabelFont write FLabelFont;
     property LabelFormat: String read FLabelFormat write FLabelFormat;
+    property LabelFormatDateTime: String read FLabelFormatDateTime write FLabelFormatDateTime;
+    property LabelFormatFromSource: Boolean read FLabelFormatFromSource write FLabelFormatFromSource;
     property LabelFormatPercent: String read FLabelFormatPercent write FLabelFormatPercent;
     property LabelRotation: Integer read FLabelRotation write FLabelRotation;
     property Logarithmic: Boolean read FLogarithmic write FLogarithmic;
@@ -1190,6 +1194,8 @@ begin
   FLabelFont.Style := [];
   FLabelFont.Color := scBlack;
 
+  FLabelFormatFromSource := true;
+  FLabelFormatDateTime := '';
   FLabelFormatPercent := '0%';
   FLabelRotation := 0;
   FShowLabels := true;
diff --git a/components/fpspreadsheet/source/common/fpsopendocumentchart.pas b/components/fpspreadsheet/source/common/fpsopendocumentchart.pas
index 95a5f4fa0..ca80abd51 100644
--- a/components/fpspreadsheet/source/common/fpsopendocumentchart.pas
+++ b/components/fpspreadsheet/source/common/fpsopendocumentchart.pas
@@ -12,7 +12,8 @@ uses
   fpszipper,
  {$ENDIF}
   laz2_xmlread, laz2_DOM,
-  fpsTypes, fpSpreadsheet, fpsChart, fpsUtils, fpsReaderWriter, fpsXMLCommon;
+  fpsTypes, fpSpreadsheet, fpsChart, fpsUtils, fpsNumFormat,
+  fpsReaderWriter, fpsXMLCommon;
 
 type
 
@@ -693,9 +694,15 @@ var
   ticks: TsChartAxisTicks = [];
 begin
   nodeName := AStyleNode.NodeName;
+
   s := GetAttrValue(AStyleNode, 'style:data-style-name');
   if s <> '' then
     s := TsChartNumberFormatList(FNumberFormatList).FindFormatByName(s);
+  if IsDateTimeFormat(s) then
+  begin
+    Axis.DateTime := true;
+    Axis.LabelFormatDateTime := s;
+  end else
   if (AChart.StackMode = csmStackedPercentage) and ((Axis = AChart.YAxis) or (Axis = AChart.Y2Axis)) then
     Axis.LabelFormatPercent := s
   else
diff --git a/components/fpspreadsheet/source/visual/fpspreadsheetchart.pas b/components/fpspreadsheet/source/visual/fpspreadsheetchart.pas
index 2c55b6a52..70310a6a5 100644
--- a/components/fpspreadsheet/source/visual/fpspreadsheetchart.pas
+++ b/components/fpspreadsheet/source/visual/fpspreadsheetchart.pas
@@ -27,7 +27,7 @@ uses
   TASeries, TARadialSeries, TAFitUtils, TAFuncSeries, TAMultiSeries,
   TATransformations, TAChartAxisUtils, TAChartAxis, TAStyles, TATools, TAGraph,
   // FPSpreadsheet
-  fpsTypes, fpSpreadsheet, fpsUtils, fpsChart,
+  fpsTypes, fpSpreadsheet, fpsUtils, fpsNumFormat, fpsChart,
   // FPSpreadsheet Visual
   fpSpreadsheetCtrls, fpSpreadsheetGrid, fpsVisualUtils;
 
@@ -1141,7 +1141,7 @@ begin
     Result.Title := src.Title;
   end;
 
-  // Assign series to axis for primary and secondary axes support
+  // Assign series index to axis for primary and secondary axes support
   case ASeries.XAxis of
     alPrimary:
       Result.AxisIndexX := FChart.AxisList.GetAxisByAlign(calBottom).Index;
@@ -1785,6 +1785,9 @@ begin
   // Labels
   Convert_sFont_to_Font(AWorkbookAxis.LabelFont, axis.Marks.LabelFont);
   axis.Marks.LabelFont.Orientation := round(AWorkbookAxis.LabelRotation * 10);
+  if (AWorkbookAxis.LabelFormat <> '') and not IsDateTimeFormat(AWorkbookAxis.LabelFormat) then
+    axis.Marks.Format := Convert_NumFormatStr_to_FormatStr(AWorkbookAxis.LabelFormat);
+
 
   // Axis line
   UpdateChartPen(AWorkbookAxis.Chart, AWorkbookAxis.AxisLine, axis.AxisPen);
@@ -1839,9 +1842,34 @@ begin
     axis.Intervals.MinLength := 20;
     axis.Intervals.Tolerance := 0;
   end;
+end;
+
+procedure TsWorkbookChartLink.UpdateChartAxisLabels(AWorkbookChart: TsChart);
+var
+  axis: TChartAxis;
+begin
+  if FChart.SeriesCount = 0 then
+    exit;
+
+  axis := FChart.BottomAxis;
+  case AWorkbookChart.GetChartType of
+    ctScatter, ctBubble:
+      begin
+        axis.Marks.Source := nil;
+        axis.Marks.Style := smsValue;
+      end;
+    ctBar, ctLine, ctArea:
+      begin
+        axis.Marks.Source := TChartSeries(FChart.Series[0]).Source;
+        if not AWorkbookChart.Series[0].LabelRange.IsEmpty then
+          axis.Marks.Style := smsLabel
+        else
+          axis.Marks.Style := smsXValue;
+      end;
+  end;
 
   // Date/time?
-  if AWorkbookAxis.DateTime then
+  if AWorkbookChart.XAxis.DateTime then
   begin
     axis.Marks.Source := TDateTimeIntervalChartsource.Create(FChart);
     axis.Marks.Style := smsLabel;
@@ -1853,28 +1881,6 @@ begin
   end;
 end;
 
-procedure TsWorkbookChartLink.UpdateChartAxisLabels(AWorkbookChart: TsChart);
-begin
-  if FChart.SeriesCount = 0 then
-    exit;
-
-  case AWorkbookChart.GetChartType of
-    ctScatter, ctBubble:
-      begin
-        FChart.BottomAxis.Marks.Source := nil;
-        FChart.BottomAxis.Marks.Style := smsValue;
-      end;
-    ctBar, ctLine, ctArea:
-      begin
-        FChart.BottomAxis.Marks.Source := TChartSeries(FChart.Series[0]).Source;
-        if not AWorkbookChart.Series[0].LabelRange.IsEmpty then
-          FChart.BottomAxis.Marks.Style := smsLabel
-        else
-          FChart.BottomAxis.Marks.Style := smsXValue;
-      end;
-  end;
-end;
-
 procedure TsWorkbookChartLink.UpdateChartBackground(AWorkbookChart: TsChart);
 begin
   FChart.Color := Convert_sColor_to_Color(AWorkbookChart.Background.Color);