c++ program to deduct 5 minute from the current system

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hi,

I am trying to write a program that has to perform deduction of 5 minute from current system. How this can be achieved in vc++...

regards,
sanath

Posted 27-Sep-11 19:51pm

sanathbt

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André Kraak 28-Sep-11 3:54am

What is it you exactly want? Do you mean you want to change the system time, as you might do through the configuration screen?

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CPallini · Answer 1 · 2011-09-27T22:01:00

Solution 2

C++/CLI

DateTime ^ dt;
dt = DateTime::Now.AddMinutes(-5);
Console::WriteLine(L"5 minutes ago : {0}", dt);

Posted 27-Sep-11 22:01pm

CPallini

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sanathbt 30-Sep-11 7:27am

is this for c++? If yes tell me which header i have to use...

CPallini 30-Sep-11 8:23am

It is C++/CLI, as specified in your question's tag.

Mithun Thakur From NICE Computers · Answer 2 · 2011-10-05T00:36:00

#include <stdio.h>
#include<iostream.h>
#include <time.h>
#include<conio.h>

int main ()
{

time_t rawtime;
struct tm * timeinfo;
int min, hr,sec;

time ( &rawtime );
timeinfo = localtime ( &rawtime );

printf ( "Current local time and date: %s", asctime (timeinfo) );
min=timeinfo->tm_min;
hr=timeinfo->tm_hour;
// sec=timeinfo->tm_sec;

min=min-5;

if(min<0)
{
min=min+60;
hr--;
cout<<"\n After deducting 5 min new time is "<<hr<<":"<<min;
}
else
{
cout<<"\n After deducting 5 min new time is "<<hr<<":"<<min;

}

getch();
return 0;

}

this is complete code

Mithun Thakur From NICE Computers · Answer 3 · 2011-09-27T21:24:00

Solution 1

in c++ you can retrieve system time by __TIME__ and you can store this time in a variable

char code my_time[] = "Compile Time = " __TIME__;

now you can get the values and do what you want to do

best of luck for the rest.

Posted 27-Sep-11 21:24pm

Mithun Thakur From NICE Computers

Comments

sanathbt 30-Sep-11 7:42am

I am not getting the remaining logic only... I tried my logic its giving -ve values for some input.
If you know the logic, give me suggestion.... That logic to work for everything like leap year etc....

Mithun Thakur From NICE Computers 30-Sep-11 23:50pm

can you explain that what exactly you want to do? is it do you want to read system time and want to less 5 min from it or you want to set System Time

sanathbt 3-Oct-11 7:18am

Now I am reading the system time by using time.h . I want to subtract 5 minutes from that time...

c++ program to deduct 5 minute from the current system

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