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setclock(3C)							  setclock(3C)

NAME
       setclock - set value of system-wide clock

SYNOPSIS
DESCRIPTION
       The function sets the current value of the specified system-wide clock,

       supports a of defined in which represents the time-of-day clock for the
       system.	For this clock, the values returned by represent the amount of
       time since the Epoch.

       The calling process must have appropriate privileges to set the clock.

RETURN VALUE
       Upon  successful	 completion,  returns  a  value	 of zero; otherwise it
       returns −1 and sets to indicate the error.

ERRORS
       fails if any of the following conditions are encountered:

	      [EINVAL]	  does not  specify  a	known  system-wide  clock,  or
			  either  is outside the range for a given clock type,
			  or it specifies a nanosecond value less than zero or
			  greater than or equal to 1000 million.

	      [EIO]	  An error occurred while accessing the clock device.

	      [EPERM]	  The  requesting  process  does not have the required
			  appropriate privileges to set the specified clock.

FILES
SEE ALSO
       clocks(2), getclock(3C), gettimer(3C), thread_safety(5).

STANDARDS CONFORMANCE
								  setclock(3C)

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