.BR \%adjtimex 's " \-\-log " options.
.PP
It may be more effective to simply track the System Clock drift with
-.BR \%ntpdate\ \-q " , or " \%date\ \-Ins
+.BR \%sntp ", or " \%date\ \-Ins
and a precision timepiece, and then calculate the correction manually.
.PP
After setting the tick and frequency values, continue to test and refine the
file. Continue to test and refine the drift factor until the Hardware
Clock is corrected properly at startup. To check this, first make sure
that the System Time is correct before shutdown and then use
-.BR \%ntpdate\ \-q ", or " \%date\ \-Ins
+.BR \%sntp ", or " \%date\ \-Ins
and a precision timepiece, immediately after startup.
.PP
Both clocks typically use a quartz crystal oscillator. Crystals are