<sect1 id="timebase.h"><title><filename>timebase.h</filename></title>
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  <entry>Functions:-</entry><entry>Contains date and time related constants that will require patching over time.</entry>
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  <entry spanname='s1' align='left'>Notes based on Tue Apr 6 10:17:55 2010 -0400</entry>
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  <entry><function>LEAP_SECONDS</function></entry>
  <entry><para>Offset between GPS and UTC, in seconds.</para></entry>
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  <entry><function>START_SUBFRAME</function></entry>
  <entry><para>When to start doing subframe queries to get the
  leap-second offset.  Should be set to the next possible time for a
  leap-second change according to IERS.</para></entry>
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  <entry><function>CENTURY_BASE</function></entry>
  <entry><para>Currently 2000</para></entry>
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