TimerManager interval calculation bug fixed

!!!RELEASE CANDITATE!!!

LEDLamp.ino

 		return;
 	}
 
-//	uint32_t now = millis();
-//	if (now - lastNtpCheck >= 5000) {
-//		lastNtpCheck = now;
-//		if (timerManager.isNowInTimeInterval()) {
-//			if (ledMngr.isOn()) {
-//				ledMngr.off();
-//			}
-//		} else {
-//			if (!ledMngr.isOn()) {
-//				ledMngr.on();
-//			}
-//		}
-//	}
+	uint32_t now = millis();
+	if (now - lastNtpCheck >= 5000) {
+		lastNtpCheck = now;
+		if (timerManager.isNowInTimeInterval()) {
+			if (ledMngr.isOn()) {
+				ledMngr.off();
+			}
+		} else {
+			if (!ledMngr.isOn()) {
+				ledMngr.on();
+			}
+		}
+	}
 
 	driveLEDStrip();
 }
 
 	configManager.loadConfig();
 	ledMngr.begin();
+	timerManager.begin();
 
 	setState(STATE_BOOT);
 	connectStart = millis();

TimerManager.cpp

 
 WiFiUDP ntpUDP;
 
-// Set up your base timezone offset in seconds (e.g., UTC+2 for Baar, Switzerland is 3600)
+// Set up your base timezone offset in seconds (e.g., UTC+1 for Baar, Switzerland is 3600)
 const long gmtOffset_sec = 3600;
 
 // Set up DST offset in seconds (1 hour = 3600 seconds)
 const long daylightOffset_sec = 3600;
 
 TimerManager::TimerManager(ConfigManager &configManager)
-: configManager(configManager), ntpClient(ntpUDP, "pool.ntp.org", 3600) {
-	ntpClient.begin();
+: configManager(configManager), ntpClient(ntpUDP, "pool.ntp.org", gmtOffset_sec) {
 }
 
 TimerManager::~TimerManager() {
 }
 
+void TimerManager::begin() {
+	ntpClient.begin();
+}
+
 void TimerManager::onTimerIntervalChange(String timerIntervalName, const char *timerInterval) {
 	TimeInterval interval;
 	parseTimeInterval(timerInterval, interval);
 
 	Config cfg = configManager.getConfig();
 	ntpClient.update();
-	uint32_t epochTime = ntpClient.getEpochTime();
-	time_t localTime = epochTime + gmtOffset_sec;
-
-	if (isDST(month(localTime), day(localTime), weekday(localTime))) {
+	time_t localEpochTime = ntpClient.getEpochTime() + gmtOffset_sec;
+	time_t localTime = ntpClient.getHours() * 3600 + ntpClient.getMinutes() * 60 + ntpClient.getSeconds();
+	bool isDst = isDST(month(localEpochTime), day(localEpochTime), weekday(localEpochTime));
+	if (isDst) {
 		localTime += daylightOffset_sec;
 	}
 
+	Serial.print("isDST: ");
+	Serial.println(isDst ? "true" : "false");
+	Serial.println(ntpClient.getFormattedTime());
 	Serial.print("localTime: ");
 	Serial.println(secondsToFormatedTime(localTime));
 
 }
 
 String TimerManager::secondsToFormatedTime(uint32_t seconds) {
+
 	uint8_t hour = seconds / 3600;
-	uint8_t _seconds = seconds % 3600;
+	seconds %= 3600;
 
-	uint8_t minute = _seconds / 60;
-	uint8_t second = _seconds % 60;
+	uint8_t minute = seconds / 60;
+	uint8_t second = seconds % 60;
 
 	char buffer[9]; // "HH:mm:ss" + '\0'
 	snprintf(buffer, sizeof(buffer), "%02u:%02u:%02u",

TimerManager.h

 		TimerManager(ConfigManager &configManager);
 		virtual ~TimerManager();
 
+		void begin();
 		void onTimerIntervalChange(String timerIntervalName, const char *timerInterval);
 		void saveTimerInterval(String timerIntervalName, uint32_t start, uint32_t end);
 		bool isNowInTimeInterval();

sloeber.ino.cpp

 //This is a automatic generated file
 //Please do not modify this file
 //If you touch this file your change will be overwritten during the next build
-//This file has been generated on 2026-07-14 11:10:18
+//This file has been generated on 2026-07-14 11:48:58
 
 #include "Arduino.h"
 #include "Arduino.h"