Skip site navigation (1)Skip section navigation (2)

FreeBSD Manual Pages

  
 
  

home | help
NTPTIME(8)		    System Manager's Manual		    NTPTIME(8)

NAME
       ntptime -- read kernel time variables

SYNOPSIS
       ntptime [-chr] [-e est_error] [-f frequency] [-m	max_error] [-o offset]
	       [-s status] [-t time_constant]

DESCRIPTION
       The  ntptime  utility  is useful	only with special kernels described in
       the "A Kernel Model for Precision Timekeeping" page (available as  part
       of  the	HTML  documentation provided in	/usr/share/doc/ntp).  It reads
       and displays time-related kernel	 variables  using  the	gettime()  and
       adjtime(2)  system  calls  if  available.  A similar display can	be ob-
       tained using the	ntpdc(8) program's kerninfo command.

       The following options are available:

       -c      Display the execution time of ntptime itself.

       -e est_error
	       Specify estimated error,	in microseconds.

       -f frequency
	       Specify frequency offset, in parts per million.

       -h      Display help information.

       -m max_error
	       Specify max possible errors, in microseconds.

       -o offset
	       Specify clock offset, in	microseconds.

       -r      Display Unix and	NTP times in raw format.

       -s status

       -t time_constant
	       Specify time constant, an integer in the	range 0-4.

SEE ALSO
       adjtime(2), ntpdc(8)

FreeBSD	14.3			April 27, 2015			    NTPTIME(8)

Want to link to this manual page? Use this URL:
<https://man.freebsd.org/cgi/man.cgi?query=ntptime&sektion=8&manpath=FreeBSD+14.3-RELEASE+and+Ports>

home | help