date type

As far as I can tell the type of Date in Database should correspond to
Date in Common Lisp. Now I searched through time.lisp for quite a
while now but I dit not find a function for getting  date type out of
a WALL time the only thing there was is time->date which loss of data
as mentioned in the doku.

Now what have I overseen?

How is one supposed to add a timestamp like e.g. "now"?


Regards
Friedrich