diff --git a/include/Program.h b/include/Program.h
index 8f39a37..2c81ba2 100644
--- a/include/Program.h
+++ b/include/Program.h
@@ -4,6 +4,7 @@
 #include <Arduino.h>
 #include <ESP8266WiFi.h>
 #include <NTPClient.h>
+#include <Timezone.h>
 #include <WiFiUdp.h>
 
 #include "DiscordAPI.h"
@@ -44,6 +45,7 @@ private:
     LedLib* ledLib;
     WiFiUDP* ntpUDP;
     NTPClient* timeClient;
+    Timezone* timezone;
 
     /**
      * @brief Send time to discord
diff --git a/platformio.ini b/platformio.ini
index 325b3ea..b490b50 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -54,6 +54,8 @@ lib_deps =
 ;    erropix/ESP32 AnalogWrite@0.2
     adafruit/Adafruit NeoPixel@^1.11.0
     arduino-libraries/NTPClient@^3.2.1
+	paulstoffregen/Time @ ^1.6.1
+	jchristensen/Timezone@^1.2.5
 
 ; Checker settings
 check_tool = clangtidy, cppcheck
diff --git a/src/Program.cpp b/src/Program.cpp
index 7f68b52..3ebf40b 100644
--- a/src/Program.cpp
+++ b/src/Program.cpp
@@ -1,5 +1,7 @@
 #include "Program.h"
-
+#include <TimeLib.h>
+#include <time.h>
+#include <Timezone.h>
 
 Program::Program() {
 
@@ -30,7 +32,14 @@ Program::Program() {
     this->ntpUDP = new WiFiUDP();
     this->timeClient = new NTPClient(*this->ntpUDP, "pool.ntp.org", 3600*1);//*2 = gnt+2
 
-    this->timeClient->update();
+    if (this->timeClient->update()) {
+        setTime(this->timeClient->getEpochTime());
+    }
+
+    // setup Timezone
+    TimeChangeRule CEST = {"CEST", Last, Sun, Mar, 2, 120};     // Central European Summer Time
+    TimeChangeRule CET = {"CET ", Last, Sun, Oct, 3, 60};       // Central European Standard Time
+    this->timezone = new Timezone(CEST, CET);
 
     // Startup Rotary
     this->encoder = new SwitchableEncodeur(ENCODER_DT, ENCODER_CLK, ENCODER_SWITCH, 3);
@@ -63,24 +72,26 @@ void Program::loop() {
         break;
 
         case MainMenu::GET_START_HOUR:{ // get NTP Hour
-            //TODO: géré heure d'été et d'hiver
-            this->timeClient->update();
-            int hour = this->timeClient->getHours();
-            int min = this->timeClient->getMinutes();
-            int day = this->timeClient->getDay();
-            if(hour >= 12){
-                hour -= 12;
+            if (this->timeClient->update()) {
+                setTime(this->timeClient->getEpochTime());
+            }
+            time_t localNow = this->timezone->toLocal(now());
+            int _hour = hour(localNow);
+            int _min = this->timeClient->getMinutes();
+            int _day = this->timeClient->getDay();
+            if(_hour >= 12){
+                _hour -= 12;
                 this->pm = true;
             }else{
                 this->pm = false;
             }
-            this->nLedStart = hour*2;
-            if(min >= 30){
+            this->nLedStart = _hour*2;
+            if(_min >= 30){
                 this->nLedStart++;
             }
             this->menu=MainMenu::SELECT_END_HOUR;
             this->resetMillis = millis();
-            if(day == 2 || day == 5){
+            if(_day == 2 || _day == 5){
                 this->encoder->setValue(21-this->nLedStart);
             }else{
                 this->encoder->setValue(1);