void loop() myRTC.updateTime(); Serial.print(myRTC.hours); Serial.print(":"); Serial.print(myRTC.minutes); Serial.print(":"); Serial.println(myRTC.seconds); delay(1000);
You want reliable, modern RTC support. Better alternatives:
void setup() Serial.begin(9600); // Set time once (year, month, day, hour, min, sec) // myRTC.setDS1302Time(0, 49, 20, 5, 14, 4, 2026);
If you're starting a new project, use RTClib with a DS3231 module instead. It's more accurate, well-documented, and actively supported.