|char *ctime(const time_t *timer);|
timer -A time_t type storing the seconds elapsed since 1900.
char -Returns the pointer returned by the ‘asctime’ function with that broken-down time as argument.
In C programming the <time.h> ctime function converts the calendar time pointed to by ‘timer’ to local time in the form of a string given below.
Thu Sep 16 10:03:52 2013\n\0
Note here the ‘timer’ stores the number of seconds elapsed since 1st January 1900,the function ‘ctime’ converts the seconds into the time format string as shown above.
time( &t ); //get the current time
printf( “%s” , ctime(&t) );
Thu Jul 20 22:25:31 2017
The output given is the time when the program is executed.
Link : C time time.h
The function ‘ctime’ is equivalent to calling,