of the
   CSPICE system, for example pointing and ephemeris data, it is necessary
   to be able to convert between SCLK time and representations of time in
   other systems, such as UTC and ephemeris time (also referred to as
   ``ET,'' ``barycentric dynamical time,'' and ``TDB'').
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   CSPICE contains the following functions to convert between encoded and
   character SCLK, ET and UTC. Note that the names of the functions
   involving SCLK are all prefixed with `sc', for Spacecraft Clock.
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