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47 lines
1.8 KiB
47 lines
1.8 KiB
<ARTICLE ID="XACC-Y2K">
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<ARTHEADER>
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<TITLE>GnuCash Y2K Readiness</TITLE>
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</ARTHEADER>
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<sect1>
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<title></title>
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<PARA>GnuCash versions 1.1.25 and later store all dates as seconds and
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nanoseconds, where the seconds are stored in a 64-bit signed
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integer. This should suffice to store dates into both the distant past
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as well as the distant future, so long as they fall not
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<EMPHASIS>too</EMPHASIS> many orders of magnitude outside
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cosmologists' estimations of the age of the universe. </PARA>
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<PARA>The file format for version 1.1.25 and later stores dates in the
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above-described fashion. </PARA>
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<PARA>Some internal routines use the <FUNCTION>time_t</FUNCTION> type
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to express seconds. Note that on most OSes, this is a 32-bit quantity,
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and is thus limited to the Unix epoch, roughly December 1901 thru Jan
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2038. It is reasonable to expect that <FUNCTION>time_t</FUNCTION> will
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migrate to the use of 64 bit values by that time. </PARA>
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<PARA>Backup and log files are time-stamped using the standard Unix
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<FUNCTION>ctime()</FUNCTION> routine, which takes a
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<FUNCTION>time_t</FUNCTION> argument. Thus, the backup and log
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mechanism may experience trouble in 2038, assuming your present Unix
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continues to be in service at that time without any remediation.
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</PARA>
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<PARA>Note that GnuCash also correctly recognizes February 29th, 2000
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as a "leap day," another of the "critical Y2K dates." </PARA>
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<PARA>This is all highly suggestive that GnuCash should cope
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reasonably well with the transition to the new millennium, whether you
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consider that takes place in 2000 or in 2001... </PARA>
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<PARA>Y2K issues are described in more detail at <ULINK URL=
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"http://www.ntlug.org/~cbbrowne/linuxy2k.html">Linux and Year
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2000.</ULINK> </PARA>
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</sect1>
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</ARTICLE>
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