diff --git a/src/app/SAB.cpp b/src/app/SAB.cpp
index 1e9a6dc..42b6a2e 100644
--- a/src/app/SAB.cpp
+++ b/src/app/SAB.cpp
@@ -1,5 +1,10 @@
 #include "SAB.h"
 
+//Initializing the static pointer to the RtcManager
+//Ugly, but I don't know how to do it an other way
+//This static member is used to declare the callback necessary to set the file system's time
+RtcManager *SAB::_rtcManagerP = NULL;
+
 SAB::SAB() : _sdCardManager(_boardConfig.getSPI_SDCard_cs(), _boardConfig.getSPISpeed()), 
 _display(_boardConfig.getScreenWidth(),_boardConfig.getScreenHeight(), &Wire),
 _screenManager(_display, &_sdCardManager),
@@ -23,8 +28,16 @@ _error(0)
   //We initialize the pins for the  I2C communication
   Wire.begin(_boardConfig.getI2C_sda(), _boardConfig.getI2C_scl());
   if(!_rtc.begin()) _error |= RTC_BEGIN_ERR;
+  else
+  {
+    SAB::_rtcManagerP = &_rtcManager;
+  }
   if(!_display.begin(SSD1306_SWITCHCAPVCC, _boardConfig.getI2C_screenAddress())){ _error |= DISP_BEGIN_ERR; }
   if(!_sdCardManager.mountSD()){ _error |= SDCARD_INIT_ERR; Serial.print("Failed to init SDCard : SPI_SPEED : "); Serial.print(8000000); Serial.print(" CS PIN : "); Serial.println(_boardConfig.getSPI_SDCard_cs());}
+  else
+  {
+    _sdCardManager.setTimeCallback(&(SAB::myTimeCallback));
+  }
   _screenManager.init();
   _connectivityManager = new ConnectivityManager(_sdCardManager);
   if(!_pcf.begin()){_error |= IO_INIT_ERR;}
@@ -55,8 +68,16 @@ _error(0)
   //We initialize the pins for the  I2C communication
   Wire.begin(_boardConfig.getI2C_sda(), _boardConfig.getI2C_scl());
   if(!_rtc.begin()) _error |= RTC_BEGIN_ERR;
+  else
+  {
+    SAB::_rtcManagerP = &_rtcManager;
+  }
   if(!_display.begin(SSD1306_SWITCHCAPVCC, _boardConfig.getI2C_screenAddress())) _error |= DISP_BEGIN_ERR;
   if(!_sdCardManager.mountSD()){ _error |= SDCARD_INIT_ERR; Serial.print("Failed to init SDCard : SPI_SPEED : "); Serial.print(8000000); Serial.print(" CS PIN : "); Serial.println(_boardConfig.getSPI_SDCard_cs());}
+  else
+  {
+    _sdCardManager.setTimeCallback(&(SAB::myTimeCallback));
+  }
   _screenManager.init();
   _connectivityManager = new ConnectivityManager(_sdCardManager);
   if(!_pcf.begin()){_error |= IO_INIT_ERR;}
@@ -69,6 +90,14 @@ void SAB::initGPIO()
   pinMode(GPIO_0, INPUT);
 }
 
+time_t SAB::myTimeCallback()
+{
+  if(SAB::_rtcManagerP != NULL)
+    return SAB::_rtcManagerP->getDateTime().unixtime();
+  else
+   return 0;
+}
+
 ScreenManager& SAB::getScreenManager()
 {
   return _screenManager;
diff --git a/src/app/SAB.h b/src/app/SAB.h
index 74dfab4..9a48bba 100644
--- a/src/app/SAB.h
+++ b/src/app/SAB.h
@@ -47,12 +47,15 @@ class SAB
     unsigned char getError() const;
   private:
     void initGPIO();
+    static time_t myTimeCallback();
     const BoardConfig _boardConfig;
     
+    
     Adafruit_SSD1306 _display;
     ScreenManager _screenManager;
     RTC_DS3231 _rtc;
     RtcManager _rtcManager;
+    static RtcManager *_rtcManagerP;
     SDCardManager _sdCardManager;
     ConnectivityManager *_connectivityManager;
     //WEBServerManager _webServerManager;