positive. This represents @var{ticks}/@var{hz} seconds, which is the
same time as plain @var{ticks} if @var{hz} is 1. A common value for
@var{hz} is 1000000000, for a nanosecond-resolution
-clock.@footnote{Currently @var{hz} should be at least 65536 to avoid
-compatibility warnings when the timestamp is passed to standard
-functions, as previous versions of Emacs would interpret such a
-timestamps differently due to backward-compatibility concerns. These
-warnings are intended to be removed in a future Emacs version.}
+clock.
@item
A list of four integers @code{(@var{high} @var{low} @var{micro}