n epoch.
   &quot;era&quot;        string    String (either &quot;b.c.&quot;  or &quot;a.d.&quot;) giving
                          era associated with an epoch.
   &quot;HR&quot;         numeric   hour component of time
   &quot;JULIAND&quot;    numeric   julian date component of time
   &quot;MM&quot;         numeric   numeric representation of month component
   &quot;MN&quot;         numeric   minute component of time
   &quot;MON&quot;        string    upper case three letter abbreviation for
         