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NTPTIME(8) FreeBSD 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 obtained 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 14.0-RELEASE-p11 April 27, 2015 FreeBSD 14.0-RELEASE-p11