#include <LiquidCrystal_I2C.h>// set the LCD number of columns and rows
int lcdColumns = 16;
int lcdRows = 2;

// set LCD address, number of columns and rows
// if you don't know your display address, run an I2C scanner sketch
LiquidCrystal_I2C lcd(0x27, lcdColumns, lcdRows);  

//---------------------serial print--------------------------------------
long days=0;
long hours=0;
long mins=0;
long secs=0;
long currentmillis=0;
unsigned long time1;
unsigned long last_time;
unsigned long duration;
int reset;

void setup(){
  Serial.begin(9600);
 last_time = 0;
 reset = 0;
 
  //Serial.print(min());
  // initialize LCD
  lcd.init();
  // turn on LCD backlight                      
  lcd.backlight(); 
  
}


void loop(){ 
 time1 = millis();
 
 GetTimeRunning();  
 delay(1000);
if (days>0) // days will displayed only if value is greater than zero
   {
    Serial.print(days);
    Serial.print(" days and: ");
    }
   Serial.print(hours);
   Serial.print(" hours: ");
   Serial.print(mins);
   Serial.print(" minutes: ");
   Serial.print(secs);    
   Serial.println(" Seconds.");
   
}    

void GetTimeRunning()
{
  currentmillis= millis();  
  secs = currentmillis/1000; //convect milliseconds to seconds
  mins=secs/60; //convert seconds to minutes
  hours=mins/60; //convert minutes to hours
  days=hours/24; //convert hours to days
  //secs=secs-(mins*60); //subtract the coverted seconds to minutes in order to display 59 secs max
  //mins=mins-(hours*60); //subtract the coverted minutes to hours in order to display 59 minutes max
  //hours=hours-(days*24); //subtract the coverted hours to days in order to display 23 hours max
  //Display results 
  secs %= 60; //remainder when divided by 60
  mins %= 60; //remainder when divided by 60
  hours %= 24; //remainder when divided by 24

//--------tampilkan di LCD-----------------------------
 // JAM
  lcd.setCursor(0, 1);
  lcd.print(hours);

  // DETIK
  lcd.setCursor(6, 1);
  // print message
  lcd.print(secs);
  
  //MENIT
  lcd.setCursor(4, 1);
  lcd.print(mins);
 
}