is also valid.
-
The RRDs::times function takes two parameters: a "start" and "end" time.
-These should be specified in the U<AT-STYLE TIME SPECIFICATION> format
-used by rrdtool. See the U<rrdfetch> documentation for a detailed
+These should be specified in the B<AT-STYLE TIME SPECIFICATION> format
+used by rrdtool. See the B<rrdfetch> documentation for a detailed
explanation on how to specify time.
=head2 Error Handling