simple clock without use of rtc

arduino clock no rtc

#include <LiquidCrystal.h>
LiquidCrystal lcd(8, 9, 4, 5, 6, 7);

void setup() { 
  lcd.print("What time is it?");
  delay(1000);
  lcd.begin(16, 2);  
  lcd.setCursor(0, 0);
  lcd.print("Apr, 15, 2013"); // print out the date
}
  //thhis is a list of int variables used in this clock program
int s=0;
int sec=0;
int hrs=0;
int minutes=0;
int initialHours = 02;//variable to initiate hours
int initialMins = 0;//variable to initiate minutes
int initialSecs = 00;//variable to initiate seconds

//this method is for seconds
int seconds()
{
    s = initialHours*3600;
    s = s+(initialMins*60);
    s = s+initialSecs;
    s = s+(millis()/1000);
    return s;
}
//this method is for hours
int hours()
{
    hrs = seconds();
    hrs = hrs/3600;
    hrs = hrs%24;
    return hrs;
}
//this method is for minutes
int mins()
{
    minutes = seconds();
    minutes = minutes/60;
    minutes = minutes%60;
    return minutes;
}

int secs()
{
    sec = seconds();
    sec = sec%60;
    return sec;
}
//this loop will conintue to keep looping so that the time can go as follows
void loop(){
    digitalClockDisplay();
}
void printDigits(byte digits){
    if(digits < 10)
        lcd.print('0');
    lcd.print(digits);
}
char sep()
{
    s = millis()/1000;
    if(s%2==0)
    {
        lcd.print(":");
    }
    else {
        lcd.print(" ");
    }  
}
void digitalClockDisplay(){
    lcd.setCursor(0,1);
    printDigits(
    hours());
    sep();
    printDigits(mins());
    sep();
    printDigits(secs());
}

hey @alexbarbosa thanks for uploading this, perfect for my use case.

Is there something in it that changes month and year?

@harryson4 yes where it says the month year and day just change those

How do you set the initial time?

Just a note to others, as soon as the processor starts doing some work and processing stuff, the clock will get out of sync. Apart from that, I like the implementation. Come to think of it, having this run on a cheap Arduino nano as a dedicated clock could work nicely :)

bro its not working instead ill provide a better code for this programm mine give a delay of 5secs for every 12 hours

Nice project and it works. But how to set the initial time?

The time shows fine until 9:59:59. It goes from 9:59:59 to 248:243:236. Also, if I change the start time to (line 16) to 08 or 09, I get an error.
error: invalid digit "9" in octal constant
int initialHours = 09;//variable to initiate hours

I'm REALLY new at this so please don't explain it as if to an expert. Thanks