TimerManager interval check

.cproject

 									<listOptionValue builtIn="false" value="&quot;${workspace_loc:/LEDLamp/libraries/ArduinoJson/src}&quot;"/>
 									<listOptionValue builtIn="false" value="&quot;${workspace_loc:/LEDLamp/libraries/Adafruit_NeoPixel}&quot;"/>
 									<listOptionValue builtIn="false" value="&quot;${workspace_loc:/LEDLamp/libraries/NTPClient}&quot;"/>
+									<listOptionValue builtIn="false" value="&quot;${workspace_loc:/LEDLamp/libraries/arduino_time-master}&quot;"/>
 								</option>
 								<inputType id="io.sloeber.compiler.cpp.sketch.input.1770649762" name="CPP source files" superClass="io.sloeber.compiler.cpp.sketch.input"/>
 							</tool>
 									<listOptionValue builtIn="false" value="&quot;${workspace_loc:/LEDLamp/libraries/ArduinoJson/src}&quot;"/>
 									<listOptionValue builtIn="false" value="&quot;${workspace_loc:/LEDLamp/libraries/Adafruit_NeoPixel}&quot;"/>
 									<listOptionValue builtIn="false" value="&quot;${workspace_loc:/LEDLamp/libraries/NTPClient}&quot;"/>
+									<listOptionValue builtIn="false" value="&quot;${workspace_loc:/LEDLamp/libraries/arduino_time-master}&quot;"/>
 								</option>
 								<inputType id="io.sloeber.compiler.c.sketch.input.1705705" name="C Source Files" superClass="io.sloeber.compiler.c.sketch.input"/>
 							</tool>
 									<listOptionValue builtIn="false" value="&quot;${workspace_loc:/LEDLamp/libraries/ArduinoJson/src}&quot;"/>
 									<listOptionValue builtIn="false" value="&quot;${workspace_loc:/LEDLamp/libraries/Adafruit_NeoPixel}&quot;"/>
 									<listOptionValue builtIn="false" value="&quot;${workspace_loc:/LEDLamp/libraries/NTPClient}&quot;"/>
+									<listOptionValue builtIn="false" value="&quot;${workspace_loc:/LEDLamp/libraries/arduino_time-master}&quot;"/>
 								</option>
 								<inputType id="io.sloeber.compiler.S.sketch.input.1190005390" name="Assembly source files" superClass="io.sloeber.compiler.S.sketch.input"/>
 							</tool>
 						</toolChain>
 					</folderInfo>
 					<sourceEntries>
-						<entry excluding="libraries/WebSockets/travis|libraries/?*/**/?xamples/**|libraries/?*/**/?xtras/**|libraries/?*/**/test*/**|libraries/?*/**/third-party/**|libraries/**/._*|libraries/?*/utility/*/*" flags="VALUE_WORKSPACE_PATH|RESOLVED" kind="sourcePath" name=""/>
+						<entry excluding="libraries/arduino_time-master/TimeAlarms|libraries/arduino_time-master/Time|libraries/arduino_time-master/DS1307RTC|libraries/WebSockets/travis|libraries/?*/**/?xamples/**|libraries/?*/**/?xtras/**|libraries/?*/**/test*/**|libraries/?*/**/third-party/**|libraries/**/._*|libraries/?*/utility/*/*" flags="VALUE_WORKSPACE_PATH|RESOLVED" kind="sourcePath" name=""/>
 					</sourceEntries>
 				</configuration>
 			</storageModule>

.project

 			<type>2</type>
 			<locationURI>ECLIPSE_HOME/arduinoPlugin/libraries/WebSockets/2.7.2</locationURI>
 		</link>
+		<link>
+			<name>libraries/arduino_time-master</name>
+			<type>2</type>
+			<location>C:/Users/FSmilari/Documents/Arduino/libraries/arduino_time-master</location>
+		</link>
 	</linkedResources>
 </projectDescription>

LEDLamp.ino

 		WiFi.begin(configManager.getConfig().ssid, configManager.getConfig().pass);
 		connectStart = millis();
 		setState(STATE_CONNECTING);
+		return;
 	}
 
+	//TODO: TimerManager::isNowInTimeInterval()
+
 	driveLEDStrip();
 }
 

LEDStripManager.cpp

 	digitalWrite(LED_STRIP_DATA_PIN, LOW);
 }
 
+bool LEDStripManager::isOn() {
+	return digitalRead(LED_STRIP_POWER_PIN) == HIGH;
+}
+
 void LEDStripManager::setBrightness(uint8_t brightness) {
 	strip.setBrightness(brightness);
 	strip.show();
 	cfg.mode = mode;
 	configManager.saveConfig(cfg);
 
-	// Handle only single action modes here. For Animations use loop functions with nonblocking timers
+// Handle only single action modes here. For Animations use loop functions with nonblocking timers
 	switch (mode) {
 		case LM_SINGLE_COLOR:
 			this->setBrightness(cfg.brightness);
 	static uint8_t currentColor = 0;
 	static uint32_t stateStart = millis();
 
-
 	if (digitalRead(LED_STRIP_POWER_PIN) == HIGH) {
 
 		uint32_t holdTime = cfg.fadingHoldTime;

LEDStripManager.h

 		void show();
 		void on();
 		void off();
+		bool isOn();
 		void setBrightness(uint8_t brightness);
 		void setPixel(uint16_t index, uint8_t red, uint8_t green, uint8_t blue, uint8_t white);
 		void setAll(uint8_t red, uint8_t green, uint8_t blue, uint8_t white);

TimerManager.cpp

  */
 
 #include "TimerManager.h"
-#include "ConfigManager.h"
 
-TimerManager::TimerManager(ConfigManager &configManager) : configManager(configManager) {
+WiFiUDP ntpUDP;
+
+// Set up your base timezone offset in seconds (e.g., UTC+2 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();
 }
 
 TimerManager::~TimerManager() {
 
 	return true;
 }
+
+bool TimerManager::isNowInTimeInterval() {
+
+	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))) {
+		localTime += daylightOffset_sec;
+	}
+
+	Serial.print("localTime: ");
+	Serial.println(secondsToFormatedTime(localTime));
+
+	return (isInInterval(localTime, cfg.timeInterval1) || isInInterval(localTime, cfg.timeInterval2));
+}
+
+bool TimerManager::isDST(int month, int day, int weekday) {
+	// DST is between last Sunday of March (month 3) and last Sunday of October (month 10)
+	if (month > 3 && month < 10)
+		return true;
+	if (month == 3) {
+		int lastSunday = 31 - (weekday - 1); // math to find the last Sunday
+		if (day >= lastSunday)
+			return true;
+	}
+	if (month == 10) {
+		int lastSunday = 31 - (weekday - 1);
+		if (day < lastSunday)
+			return true;
+	}
+	return false;
+}
+
+bool TimerManager::isInInterval(uint32_t now, const TimeInterval &interval) {
+
+	if (interval.start <= interval.end) {
+		// normales Intervall
+		return now >= interval.start && now < interval.end;
+	}
+
+	// Intervall geht über Mitternacht
+	return now >= interval.start || now < interval.end;
+}
+
+String TimerManager::secondsToFormatedTime(uint32_t seconds) {
+	uint8_t hour = seconds / 3600;
+	uint8_t _seconds = seconds % 3600;
+
+	uint8_t minute = _seconds / 60;
+	uint8_t second = _seconds % 60;
+
+	char buffer[9]; // "HH:mm:ss" + '\0'
+	snprintf(buffer, sizeof(buffer), "%02u:%02u:%02u",
+			hour, minute, second);
+
+	return String(buffer);
+}

TimerManager.h

 #define TIMERMANAGER_H_
 
 #include "ConfigManager.h"
+#include "NTPClient.h"
+#include <WiFiUdp.h>
 
 class TimerManager {
 
 
 		void onTimerIntervalChange(String timerIntervalName, const char *timerInterval);
 		void saveTimerInterval(String timerIntervalName, uint32_t start, uint32_t end);
-
+		bool isNowInTimeInterval();
 
 	private:
 		ConfigManager &configManager;
+		NTPClient ntpClient;
 
 		uint32_t timeToSeconds(uint8_t hour, uint8_t minute, uint8_t second);
 		bool parseTimeInterval(const char *str, TimeInterval &interval);
+		bool isDST(int month, int day, int weekday);
+		bool isInInterval(uint32_t now, const TimeInterval &interval);
+		String secondsToFormatedTime(uint32_t seconds);
 };
 
-
-
 #endif /* TIMERMANAGER_H_ */

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 2026-07-12 21:54:14
+//This file has been generated on 2026-07-13 20:13:32
 
 #include "Arduino.h"
 #include "Arduino.h"