Simple clock using DS3231 and TTGO T-Display

#include <SPI.h>
#include <TFT_eSPI.h>  //https://github.com/Xinyuan-LilyGO/TTGO-T-Display/tree/master/TFT_eSPI
#include <DS3231.h>
#include <Wire.h>

//#define TFT_CS 5
//#define TFT_RST 23
//#define TFT_DC 16

//#define SDA 21
//#define SCL 22

DS3231 myRTC;
TFT_eSPI tft = TFT_eSPI(135,240);

byte HOURS;
byte L_HOURS = 0;
byte MINS;
byte L_MINS = 0;
byte SECS;
byte L_SECS = 0;
byte DOW;
byte L_DOW = 3;
byte Date;
byte L_Date = 4;
byte Temp;
byte L_Temp;
bool h12Flag,pmFlag;  // Not Used Here
bool century = false;
String Dow []= {"0","Monday","Tuesday","Wednesday","Thursday","Friday","Saturday","Sunday" };
byte Spc []= {0,49,34,14,38,49,38,49};  // X position of Weekday
byte L_Month = 1;
byte Months;

void setup() {
   Serial.begin(57600);
   Wire.begin();
   tft.init();
   tft.setRotation(3);
   tft.fillScreen(TFT_BLACK);
   tft.setTextColor(TFT_WHITE);
   tft.setTextSize(4);
   tft.drawRect(0,0,239,134,TFT_RED);
   tft.drawLine(1,46,238,46,TFT_RED);
   tft.drawLine(1,88,238,88,TFT_RED);
   tft.setCursor(24,8);
   tft.print("00:00:00");
   tft.setCursor(Spc[L_DOW],52);
   tft.setTextColor(TFT_GREEN);
   tft.print(Dow[L_DOW]);
   tft.setCursor(30,100);
   tft.setTextSize(3);
   tft.setTextColor(TFT_YELLOW);
   tft.print("04/");
   L_Month = myRTC.getMonth(century);
   PRINT_Month();
   tft.print("/");
   if (century) {
    tft.print("2024");
   }
   else {
    tft.print("2023");   
   }

   tft.setTextSize(4);

   

}

void loop() {
  SECS = myRTC.getSecond();
  if (L_SECS != SECS) {
    tft.setTextColor(TFT_BLACK);
    PRINT_SECS();
    L_SECS = SECS;
    tft.setTextColor(TFT_WHITE);
    PRINT_SECS();
    }
  MINS = myRTC.getMinute();
  if (L_MINS != MINS) {
    tft.setTextColor(TFT_BLACK);
    PRINT_MINS();
    L_MINS = MINS;
    tft.setTextColor(TFT_WHITE);
    PRINT_MINS();
  }
  HOURS = myRTC.getHour(h12Flag,pmFlag);
  if (L_HOURS != HOURS) {
    tft.setTextColor(TFT_BLACK);
    PRINT_HOURS();
    L_HOURS = HOURS;
    tft.setTextColor(TFT_WHITE);
    PRINT_HOURS();
  }
  DOW = myRTC.getDoW();
  if (L_DOW != DOW) {
    tft.setTextColor(TFT_BLACK);
    PRINT_DOW();
    L_DOW = DOW;
    tft.setTextColor(TFT_GREEN);
    PRINT_DOW();
  }
  Date = myRTC.getDate();
  if (L_Date != Date) {
    tft.setTextColor(TFT_BLACK);
    tft.setTextSize(3);
    PRINT_Date();
    L_Date = Date;
    tft.setTextColor(TFT_YELLOW);
    PRINT_Date();
    tft.setTextSize(4);
  }
  Months = myRTC.getMonth(century);
  if (L_Month != Months) {
    tft.setTextColor(TFT_BLACK);
    tft.setTextSize(3);
    PRINT_Month();
    L_Month = Months;
    tft.setTextColor(TFT_YELLOW);
    PRINT_Month();
    tft.setTextSize(4);
  }


}

void PRINT_SECS() {
  tft.setCursor(168,8);
  if (L_SECS < 10) {
    tft.print("0");
  }
  tft.print(L_SECS);
}
 void PRINT_MINS() {
  tft.setCursor(96,8);
  if (L_MINS < 10) {
    tft.print("0");
  }
  tft.print(L_MINS);
 }
 void PRINT_HOURS() {
  tft.setCursor(24,8);
  if (L_HOURS < 10) {
    tft.print("0");
  }
  tft.print(L_HOURS);
 }
 void PRINT_DOW() {
  tft.setCursor(Spc[L_DOW],52);
  tft.print(Dow[L_DOW]);
 }
 void PRINT_Date() {
  tft.setCursor(30,98);
  if (L_Date < 10) {
    tft.print("0");
  }
  tft.print(L_Date);
 }
 void PRINT_Month() {
  tft.setCursor(84,100);
  if (L_Month < 10) {
   tft.print("0");
      }
  tft.print(L_Month);
 }