Manpage for clock driver

clock [-h | -u | -display | -set | -stat | -v | -daemon] [-device devicepath]

        clock on its own without any parameters will print useage
        onto standard error as per -h or -u command and then exit.
        Clock will return an error status on exit and an error message
        on standard error.
-h,-u
        display command useage on standard error and then exit.
-display
        gets the current time from the clock and displays it. Also
        computes and displays the difference between clock time and
        local Unix time
-set
        Gets the current time from the clock and sets the local clock
        to it.
-stat
        Gets and displays reception status from clock
-v
        Display version number of the program
-daemon
        The program will disconnect itself from the terminal and
        operate in the background. The program will poll the clock at
        intervals of s seconds and log statistics to the system log.
-device devicepath
        Open the device named in devicepath as the device to which the
        clock is connected. If no device argument is given then the
        default device of /dev/cua/a will be used.