diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index f1fabea..9975602 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -12,9 +12,10 @@ jobs:
       - name: Checkout code
         uses: actions/checkout@v3
 
-      - name: Build with sglahn/platformio-core
+      - name: Build with PlatformIO (Docker)
         run: |
           docker run --rm \
-            --mount type=bind,source="$(pwd)",target=/workspace \
-            -w /workspace \
+            -v "${{ github.workspace }}:/workspace/reptil1990/AquaMasterMQTT" \
+            -w /workspace/reptil1990/AquaMasterMQTT \
+            -u root \
             sglahn/platformio-core:latest run
diff --git a/data/ota/firmware.bin b/data/ota/firmware.bin
new file mode 100644
index 0000000..ab53524
Binary files /dev/null and b/data/ota/firmware.bin differ
diff --git a/platformio.ini b/platformio.ini
index f52a88d..514cdc5 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -31,6 +31,7 @@ lib_deps =
 	esp32async/AsyncTCP@^3.4.2
 	mlesniew/PicoMQTT@^1.3.0
 	miguelbalboa/MFRC522@^1.4.12
+	adafruit/RTClib@^2.1.4
 
 [env:wemos_d1_mini32_OTA]
 board = wemos_d1_mini32
@@ -42,6 +43,7 @@ lib_deps =
 	esp32async/AsyncTCP@^3.4.2
 	mlesniew/PicoMQTT@^1.3.0
 	miguelbalboa/MFRC522@^1.4.12
+	adafruit/RTClib@^2.1.4
 upload_protocol = espota
 upload_port = 192.168.1.94
 
@@ -60,6 +62,7 @@ lib_deps =
 	esp32async/AsyncTCP@^3.4.2
 	mlesniew/PicoMQTT@^1.3.0
 	miguelbalboa/MFRC522@^1.4.12
+	adafruit/RTClib@^2.1.4
 
 [env:esp32thing]
 board = esp32thing
@@ -67,6 +70,8 @@ monitor_speed = 115200
 build_flags = 
 	-DBOARD_HAS_PSRAM
 	-mfix-esp32-psram-cache-issue
+board_upload.flash_size = 16MB
+board_build.partitions = default_16MB.csv
 targets = uploadfs
 board_build.psram = disabled
 lib_deps = 
@@ -76,6 +81,4 @@ lib_deps =
 	esp32async/AsyncTCP@^3.4.2
 	mlesniew/PicoMQTT@^1.3.0
 	miguelbalboa/MFRC522@^1.4.12
-
-
-
+	adafruit/RTClib@^2.1.4
diff --git a/src/communication.h b/src/communication.h
index 76058b0..5b477e4 100644
--- a/src/communication.h
+++ b/src/communication.h
@@ -54,14 +54,12 @@ void readButtonJSON(const char * topic, const char * payload) {
         // Extract values from JSON
         int pressType = doc["type"] | 0;
         const char* buttonId = doc["buttonmac"] | "unknown";
-        const char* messageId = doc["messageId"] | "unknown";
         uint64_t timestamp = doc["timestamp"] | 0;
 
         // Print received data
         Serial.printf("Button Press Received:\n");
         Serial.printf("  Type: %d\n", pressType);
         Serial.printf("  Button MAC: %s\n", buttonId);
-        Serial.printf("  Message ID: %s\n", messageId);
         Serial.printf("  Timestamp: %llu\n", timestamp);
 
         
diff --git a/src/timesync.h b/src/timesync.h
index 0e6ab2e..81414fc 100644
--- a/src/timesync.h
+++ b/src/timesync.h
@@ -5,6 +5,10 @@
 #include <ArduinoJson.h>
 #include <time.h>
 #include <sys/time.h>
+#include <Wire.h>
+#include "RTClib.h"
+
+RTC_PCF8523 rtc;
 
 // Globale Zeitvariablen
 struct timeval tv;
@@ -12,6 +16,9 @@ struct timezone tz;
 time_t now;
 struct tm timeinfo;
 
+//Prototypen für Zeit-Management-Funktionen
+void setupRTC();
+void setRTC(DateTime dt);
 void setupTimeAPI(AsyncWebServer& server);
 String getCurrentTimeJSON();
 bool setSystemTime(long timestamp);
@@ -49,6 +56,7 @@ bool setSystemTime(long timestamp) {
   
   if (settimeofday(&tv, NULL) == 0) {
     Serial.println("Zeit erfolgreich gesetzt: " + String(timestamp));
+     setRTC(DateTime(timestamp));
     return true;
   } else {
     Serial.println("Fehler beim Setzen der Zeit");
@@ -58,6 +66,8 @@ bool setSystemTime(long timestamp) {
 
 void setupTimeAPI(AsyncWebServer& server) {
 
+  setupRTC();
+
 // API-Endpunkt: Aktuelle Zeit abrufen
 server.on("/api/time", HTTP_GET, [](AsyncWebServerRequest *request){
   String response = getCurrentTimeJSON();
@@ -202,3 +212,37 @@ uint64_t getCurrentTimestampMs() {
     gettimeofday(&tv, NULL);
     return (uint64_t)tv.tv_sec * 1000LL + (uint64_t)tv.tv_usec / 1000LL;
 }
+
+void setupRTC() {
+
+  Wire.begin();
+
+  Serial.println("Initialisiere RTC...");
+   // Versuche RTC mit Wire zu initialisieren
+  if (!rtc.begin()) { // Versuche RTC zu initialisieren, Timeout nach 10 Sekunden
+    Serial.println("RTC nicht gefunden! Versuche erneut...");
+  }
+  
+  if (!rtc.initialized()) {
+    Serial.println("RTC nicht initialisiert, versuche Initialisierung...");
+    rtc.adjust(DateTime(F(__DATE__), F(__TIME__)));
+  } else {
+    Serial.println("RTC bereits initialisiert.");
+  }
+
+  rtc.adjust(DateTime(F(__DATE__), F(__TIME__))); // Setze die RTC auf die Kompilierungszeit
+  Serial.println("RTC initialisiert.");
+  // Aktuelle Zeit vom RTC abrufen
+  DateTime now = rtc.now();
+  Serial.printf("Aktuelle RTC-Zeit: %04d-%02d-%02d %02d:%02d:%02d\n", 
+                now.year(), now.month(), now.day(), now.hour(), now.minute(), now.second());
+                rtc.start(); // RTC starten, falls gestoppt
+}
+
+// Funktion zum Setzen der RTC-Zeit
+void setRTC(DateTime dt) {
+  rtc.adjust(dt);
+  DateTime newtime = rtc.now();
+  Serial.printf("RTC-Zeit gesetzt: %04d-%02d-%02d %02d:%02d:%02d\n", 
+                newtime.year(), newtime.month(), newtime.day(), newtime.hour(), newtime.minute(), newtime.second());
+}
\ No newline at end of file