SPICE functions, the fields of a type 1 SCLK string may be
   separated by any of the delimiter characters
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<PRE>
   -  .  ,  :  &lt;blank&gt;
</PRE>
   On output from CSPICE functions, the delimiter characters will be those
   defined by a parameter in the SCLK kernel, described later.
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   Consecutive delimiters containing no intervening digits are treated as
   if they delimit zero values.
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   Note that all fields in time strings represent integers, not decimal
   fractions. So, the strings