how do i get the time in seconds starting from 2000 to now

[william427]

i need to get the time in seconds from jan 1 2000 up to today ,i cant seem to get it
thanks

#include <iostream> 
/* time example */
#include <stdio.h>
#include <time.h>

int main ()
{
  time_t seconds;

  seconds = time (NULL);
  printf ("%ld hours since January 1, 1970 \n", seconds);
  printf ("%ld hours since January 1, 1970 \n", seconds/3600);
  printf ("%ld \n", seconds/3600-262800);




    // give the user a chance to look things over before quitting
  
  system("pause");

  return 0;
} 

[Athar]

So what's the problem? If you want seconds, then why are you messing around with hours?
There's more than 262800 hours between 1.1.1970 and 1.1.2000, by the way.

[william427]

i must have it wrong ill recheck it
thanks

[william427]

allright im coming up with 392240776 from 1,1,january 2000 to now

[william427]

i got it i hope .
thanks all

#include <iostream> 
/* time example */
#include <stdio.h>
#include <time.h>
using namespace std;


int main ()
{
  time_t seconds;

  seconds = time (NULL);
  printf ("%ld seconds since January 1, 2000 \n", seconds-946080000);
  

   cout << hex << seconds-946080000 << endl;


    // give the user a chance to look things over before quitting
  
  system("pause");

  return 0;
}

[Athar]

That's incorrect. See:

There are more than 262800 hours between 1.1.1970 and 1.1.2000, by the way.

[william427]

i dont understand ,i figured the seconds per year times thirty years subtract that from total ,,right

[Athar]

You've heard of leap years, right?

[hanst99]

How did you determine seconds per year? If you're older than 4, you should know it's not 365*24*60*60.

[william427]

i did 24*60*60*365 and leap year ooh add a day every four?

[Athar]

Yes. You can just write that in code, makes it much more obvious what you're trying to do:

const int secondsBetween1970and2000=(365*30+7)*24*60*60;
... seconds-secondsBetween1970and2000);

[hanst99]

The mean should be 365,24-somethingish days per year. Either use that, or count leap years.

[william427]

ok i added 7.5 days both ways come out the same
thank yall

[Athar]

There are 7 leap years between 1970 and 2000, not 7.5.