Hi,
i need to read the system date and time in one file(which is already done).Then in another program i need to read the contents of the first file then check if its has already crossed 1 minute from the current time.i am unable to get how to do it .please help.
Thanks
anuj

Help is given to those who help themselves by showing some effort. Perhaps you should post some code.

ok

#include <stdio.h>
#include <time.h>
#include <string.h>
#define TIME_24   1
#define TIME_12   0

char *get_time_string(int mode24);     /* Returns the time as a string in 12 or 24 hour format */
 main()
{
  char time_str[12];
  get_time_string(TIME_24);

 // printf("\n\n");
  //get_time_string(TIME_12);
}

char* get_time_string(int mode24)
{
  static char time_str[12] = {0};   /* Stroes the time as a string */
  struct tm *now = NULL;
  int hour = 0;
  time_t time_value = 0;
FILE *fp;
fp=fopen("mac.txt","w");

  time_value = time(NULL);          /* Get time value              */
  now = localtime(&time_value);     /* Get time and date structure */
  hour = now->tm_hour;              /* Save the hour value         */
  if(!mode24 && hour>12)            /* Adjust if 12 hour format    */
    hour -= 12;

  fprintf(fp,"%d:",hour);
  fprintf(fp,"%d",now->tm_min);
  //printf("%d",now->tm_sec);

hi,
I tried here in an another way but the diff.txt consists fo some garbage value please suggest me something

#include<stdio.h>
#include<time.h>
main()
{
	time_t rawtime;
	struct tm *timeinfo;
	time(&rawtime);
	timeinfo=localtime(&rawtime);	
	
	int hour2;
	int minute2;
	int seconds2;
	int end1[6];
	int end=0;
	int diff[6];
	int start[6];
	int i=0;
	char ch[6];
	char ch1[6];
	FILE *fp2;
	FILE *fp1;
	FILE *fp4;
	
	
	fp2=fopen("time.txt","r");

	while(!feof(fp2))
	{
		fscanf(fp2,"%c",&ch[i]);
		start[i]=ch[i];
		i++;

	}
	
	
	fp1=fopen("time2.txt","w");
	hour2=timeinfo->tm_hour;
	minute2=timeinfo->tm_min;
	seconds2=timeinfo->tm_sec;
	end=(hour2*3600)+(minute2*60)+seconds2;	
	fprintf(fp1,"%d",end);

	fclose(fp1);

	fp1=fopen("time2.txt","r");

	while(!feof(fp1))
	{
		fscanf(fp1,"%c",&ch1[i]);
		end1[i]=ch1[i];
		i++;
	}
	
	//fp4=fopen("diff.txt","w");
	for(i=0;i<6;i++)
	{
        diff[i]=(end1[i]-start[i]);
	printf("%d",diff[i]);
	i++;
	}
	//fclose(fp1);
	//fclose(fp2);
	//fclose(fp4);

}

hi is any1 there to help me please...............