de of the slash.
<P>
 
   A type 1 SCLK time string consists of a series of one or more fields,
   each of which contains an integer. All fields but the leftmost are
   optional. The fields of a time string represent modular counts of time
   units. (A ``mod n'' count increments from zero to n-1, and then cycles
   back to zero.) The values for a given field may be offset by some fixed
   integer, so that they range from m to m+n, where m is non-negative. The
   moduli of the various fields are not necessar