7 .Nd read kernel time variables
16 .Op Fl t Ar time_constant
20 utility is useful only with special kernels
23 A Kernel Model for Precision Timekeeping
26 (available as part of the HTML documentation
28 .Pa /usr/share/doc/ntp ) .
29 It reads and displays time-related kernel variables
34 system calls if available.
35 A similar display can be obtained using the
41 The following options are available:
42 .Bl -tag -width indent
44 Display the execution time of
48 Specify estimated error, in microseconds.
50 Specify frequency offset, in parts per million.
52 Display help information.
54 Specify max possible errors, in microseconds.
56 Specify clock offset, in microseconds.
58 Display Unix and NTP times in raw format.
60 .It Fl t Ar time_constant
61 Specify time constant, an integer in the range 0-4.