time - get time of day
The time() function returns the value of time in seconds
since 0 hours, 0
minutes, 0 seconds, January 1, 1970, Coordinated Universal
A copy of the time value may be saved to the area indicated
by the pointer
tloc. If tloc is a null pointer, no value is stored.
Upon successful completion, time() returns the value of
a value of (time_t)-1 is returned and the global variable
errno is set to
indicate the error.
The following error codes may be set in errno:
[EFAULT] An argument address referenced invalid memory.
A time() function appeared in Version 2 AT&T UNIX and used
to return time
in sixtieths of a second in 32 bits, which was to guarantee
a crisis every
2.26 years. Since the Version 6 AT&T UNIX time() scale
to seconds extending the pre-crisis stagnation period up to
a total of 68
OpenBSD 3.6 June 4, 1993
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