diff --git a/.env.development b/.env.development
index b16b78e..dca19cc 100644
--- a/.env.development
+++ b/.env.development
@@ -6,6 +6,6 @@ NEXT_PUBLIC_USE_MOCK_BACKEND_LOOP_START=false
 NEXT_PUBLIC_EXPORT_STATIC=false
 NEXT_PUBLIC_USE_CGI=false
 # App-Versionsnummer
-NEXT_PUBLIC_APP_VERSION=1.6.497
+NEXT_PUBLIC_APP_VERSION=1.6.499
 NEXT_PUBLIC_CPL_MODE=json   # json (Entwicklungsumgebung) oder jsSimulatedProd (CPL ->CGI-Interface-Simulator) oder production (CPL-> CGI-Interface Platzhalter)
 
diff --git a/.env.production b/.env.production
index 3d9e865..d5d9bc9 100644
--- a/.env.production
+++ b/.env.production
@@ -5,5 +5,5 @@ NEXT_PUBLIC_CPL_API_PATH=/CPL
 NEXT_PUBLIC_EXPORT_STATIC=true
 NEXT_PUBLIC_USE_CGI=true
 # App-Versionsnummer
-NEXT_PUBLIC_APP_VERSION=1.6.497
+NEXT_PUBLIC_APP_VERSION=1.6.499
 NEXT_PUBLIC_CPL_MODE=production
\ No newline at end of file
diff --git a/CHANGELOG.md b/CHANGELOG.md
index e37f08f..45f2930 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,13 @@
+## [1.6.499] – 2025-06-27
+
+- cleanup: delete old analog inputs mock data
+
+---
+## [1.6.498] – 2025-06-27
+
+- cleanup: delete old analog inputs mock data
+
+---
 ## [1.6.497] – 2025-06-27
 
 - fix: show history digital input
diff --git a/components/main/analogInputs/AnalogInputsChart.tsx b/components/main/analogInputs/AnalogInputsChart.tsx
index 0995690..283e57b 100644
--- a/components/main/analogInputs/AnalogInputsChart.tsx
+++ b/components/main/analogInputs/AnalogInputsChart.tsx
@@ -113,7 +113,23 @@ export default function AnalogInputsChart({
     responsive: true,
     plugins: {
       legend: { position: "top" as const },
-      tooltip: { mode: "index" as const, intersect: false },
+      tooltip: {
+        mode: "index" as const,
+        intersect: false,
+        callbacks: {
+          label: function (context: import("chart.js").TooltipItem<"line">) {
+            const y = context.parsed.y;
+            return `Messwert: ${y}`;
+          },
+          title: function (
+            tooltipItems: import("chart.js").TooltipItem<"line">[]
+          ) {
+            const date = tooltipItems[0].parsed.x;
+            return `Zeitpunkt: ${new Date(date).toLocaleString("de-DE")}`;
+          },
+        },
+      },
+
       title: {
         display: true,
         text: `Verlauf der letzten 24 Stunden`,
@@ -134,13 +150,13 @@ export default function AnalogInputsChart({
       x: {
         type: "time" as const,
         time: {
-          unit: "hour" as const,
-          tooltipFormat: "HH:mm 'Uhr' dd.MM.",
+          unit: "day", // nur Datum in Achse
+          tooltipFormat: "dd.MM.yyyy HH:mm", // aber Uhrzeit im Tooltip sichtbar
           displayFormats: {
-            hour: "HH:mm",
-            day: "dd.MM.",
+            day: "dd.MM.yyyy",
           },
         },
+
         adapters: {
           date: {
             locale: de,
diff --git a/package-lock.json b/package-lock.json
index 93cc43d..7236805 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "cpl-v4",
-  "version": "1.6.497",
+  "version": "1.6.499",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "cpl-v4",
-      "version": "1.6.497",
+      "version": "1.6.499",
       "dependencies": {
         "@fontsource/roboto": "^5.1.0",
         "@iconify-icons/ri": "^1.2.10",
diff --git a/package.json b/package.json
index 2422739..fc6d9be 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "cpl-v4",
-  "version": "1.6.497",
+  "version": "1.6.499",
   "private": true,
   "scripts": {
     "dev": "next dev",