June 4, 1993 TIME 3

### NAME

time - get time of day

### LIBRARY

Standard C Library (libc, -lc)

### SYNOPSIS

```time_t` time(```time_t *tloc`)

### DESCRIPTION

The time(``) function returns the value of time in seconds since 0 hours, 0 minutes, 0 seconds, January 1, 1970, Coordinated Universal Time.

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 time. Otherwise a value of ((```time_t``-1`)) is returned and the global variable errno is set to indicate the error.

### ERRORS

The following error codes may be set in errno:

[```EFAULT`]
  An argument address referenced invalid memory.

### SEE ALSO

gettimeofday(2), ctime(3)

### STANDARDS

The time(``) function conforms to ISO/IEC 9945-1:1990 (``POSIX.1'') .

### HISTORY

A time(``) function appeared in Version 6 `AT&T UNIX`.