Returns the current calendar time encoded as a time_t object, and also stores it in the time_t object pointed to by arg (unless arg is a null pointer)
[edit] Parameters arg - pointer to a time_t object where the time will be stored, or a null pointer [edit] Return valueCurrent calendar time encoded as time_t object on success, (time_t)(-1) on error. If arg is not a null pointer, the return value is also stored in the object pointed to by arg.
[edit] NotesThe encoding of calendar time in time_t is unspecified, but most systems conform to POSIX specification and return a value of integral type holding the number of seconds since the Epoch. Implementations in which time_t is a 32-bit signed integer (many historical implementations) fail in the year 2038.
[edit] Example#include <stdint.h>
#include <stdio.h>
#include <time.h>
int main(void)
{
time_t result = time(NULL);
if (result != (time_t)(-1))
printf("The current time is %s(%jd seconds since the Epoch)\n",
asctime(gmtime(&result)), (intmax_t)result);
}
Possible output:
The current time is Fri Apr 24 15:05:25 2015 (1429887925 seconds since the Epoch)[edit] References
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