can be examined with
.Xr ntpdc 8
(mode 7 messages) and
.Xr ntpq 8 (mode 6 messages).
.Xr ntpq 8
(mode 6 messages).
Currently, very few variables can be modified via mode 6 messages.
These variables are either created with the
.Ic setvar
This is designed primarily for convenience of
.Xr cron 8
scripts.
.It Fl t timeout
.It Fl t Ar timeout
Specify the maximum time waiting for a server response
as the value
.Ar timeout ,