time

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

[edit] Return value

Current 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] Notes

The 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);
}

The current time is Fri Apr 24 15:05:25 2015
(1429887925 seconds since the Epoch)

[edit] References

[edit] See also

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