diff --git a/opencti-platform/opencti-front/src/components/dashboard/WidgetHorizontalBars.tsx b/opencti-platform/opencti-front/src/components/dashboard/WidgetHorizontalBars.tsx
index c370f139a8514..cb564954da79a 100644
--- a/opencti-platform/opencti-front/src/components/dashboard/WidgetHorizontalBars.tsx
+++ b/opencti-platform/opencti-front/src/components/dashboard/WidgetHorizontalBars.tsx
@@ -6,6 +6,7 @@ import { ApexOptions } from 'apexcharts';
 import { horizontalBarsChartOptions } from '../../utils/Charts';
 import { simpleNumberFormat } from '../../utils/Number';
 import type { Theme } from '../Theme';
+import { dateFormat, timestamp } from '../../utils/Time';
 
 interface WidgetHorizontalBarsProps {
   series: ApexAxisChartSeries
@@ -36,13 +37,27 @@ const WidgetHorizontalBars = ({
   const theme = useTheme<Theme>();
   const navigate = useNavigate();
 
+  const getFormattedValue = (value: any) => {
+    if (typeof value === 'number') {
+      simpleNumberFormat(value);
+    }
+    const timestampInMs = parseInt(value, 10);
+
+    if (!Number.isNaN(timestampInMs)) {
+      const convertedDate = timestamp(timestampInMs);
+      const date = dateFormat(convertedDate, 'DD-MM-YYYY');
+      if (date) return date;
+    }
+    return value;
+  };
+
   return (
     <Chart
       options={horizontalBarsChartOptions(
         theme,
         true,
         simpleNumberFormat,
-        simpleNumberFormat,
+        getFormattedValue,
         distributed,
         navigate,
         redirectionUtils,
diff --git a/opencti-platform/opencti-front/src/utils/Charts.js b/opencti-platform/opencti-front/src/utils/Charts.js
index edf81116cd568..8a7164ab02ba0 100644
--- a/opencti-platform/opencti-front/src/utils/Charts.js
+++ b/opencti-platform/opencti-front/src/utils/Charts.js
@@ -1,7 +1,6 @@
 import * as C from '@mui/material/colors';
 import { resolveLink } from './Entity';
 import { truncate } from './String';
-import { dateFormat, timestamp } from './Time';
 
 const colors = (temp) => [
   C.red[temp],
@@ -526,17 +525,7 @@ export const horizontalBarsChartOptions = (
     show: stackType !== '100%',
     labels: {
       show: stackType !== '100%',
-      formatter: (value) => {
-        if (yFormatter && typeof value === 'number') {
-          return yFormatter(value);
-        }
-        if (typeof value === 'string' && value.length === 15) {
-          const timestampInMs = parseInt(value, 10);
-          const convertedDate = timestamp(timestampInMs);
-          return dateFormat(convertedDate, 'DD-MM-YYYY');
-        }
-        return value;
-      },
+      formatter: (value) => (yFormatter ? yFormatter(value) : value),
       style: {
         fontFamily: '"IBM Plex Sans", sans-serif',
       },