`am'. Note that in many locales and `pm' notation is unsupported and in
such cases %p will return an empty string.
-=item B<%S>
+=item B<%s>
The second as a decimal number (range 00 to 61).
+=item B<%S>
+
+The seconds since the epoch (1.1.1970) (libc dependant non standard!)
+
=item B<%U>
The week number of the current year as a decimal number, range 00 to 53, starting with the