S9 EXT  (sys:gettimeofday)  ==>  list
        (sys:time)          ==>  integer

SYS:GETTIMEOFDAY returns a list of the form

        (seconds microseconds)

where SECONDS is the number of seconds since the Unix Epoch
(1970-01-01T00:00:00) and microseconds the number of
microseconds since the beginning of the current second.

SYS:TIME returns the car part of the above list.

(sys:gettimeofday )  ==>  (1272263214 409904)
(sys:time)           ==>  1272263214
