Thread: Is there a way to get the time?

Is there a way for my program to take the time from the user's computer clock and store it into some sort of variable? I'd like to put a bonus in my game program for somebody using it in the wee hours of morning for example.

Some simple function calls and an include will get you on your way:

Code:

 #include <time.h>

then to get the current time:

Code:

 time_t plaintime;
 tm *ptm;
 
 time(&plaintime);
 ptm = localtime(&plaintime);

and ptm contains all of the information about the current time.

Here's the information stored in the ptm structure:

Quoted from msdn
tm_sec

Seconds after minute (0 – 59)

tm_min

Minutes after hour (0 – 59)

tm_hour

Hours after midnight (0 – 23)

tm_mday

Day of month (1 – 31)

tm_mon

Month (0 – 11; January = 0)

tm_year

Year (current year minus 1900)

tm_wday

Day of week (0 – 6; Sunday = 0)

tm_yday

Day of year (0 – 365; January 1 = 0)

tm_isdst

Positive value if daylight saving time is in effect; 0 if daylight saving time is not in effect; negative value if status of daylight saving time is unknown. The C run-time library assumes the United States’s rules for implementing the calculation of Daylight Saving Time (DST).






and to access each one just use:

Code:

 ptm->tm_mon

or whatever you want to access.

-Hope that helps

Wow! Thank you very much, that's exactly what I need!

>>#include <time.h>
#include <ctime> in C++. The functions are also placed within the std namespace, so qualification is required if the compiler conforms to the standard.

>>

Code:

time_t plaintime;
tm *ptm;
 
time(&plaintime);
ptm = localtime(&plaintime);

Both of these functions can fail. Always test return values.

Code:

time_t plaintime;
tm *ptm;

if (time(&plaintime) == (time_t)-1) {
  // Handle the error
}
ptm = localtime(&plaintime);
if (ptm == 0) {
  // Handle the error
}