** format-time-string now allows you to specify the field width<BR>
and type of padding.  This works as in printf: you write the field
width as digits in the middle of a %-construct.  If you start
the field width with 0, it means to pad with zeros.
<P>
For example, %S normally specifies the number of seconds since the
minute; %03S means to pad this with zeros to 3 positions, %_3S to pad
with spaces to 3 positions.  Plain %3S pads with zeros, because that
is how %S normally pads to two positions.
<P>