This date overflowed the 12-bit field that had been used in <a href="https://en.wikipedia.org/wiki/TOPS-10" id="mw6A" rel="mw:WikiLink" title="TOPS-10">TOPS-10</a>. There were numerous problems and crashes related to this bug while an alternative format was developed.<sup about="#mwt148" class="mw-ref reference" data-mw='{"name":"ref","attrs":{},"body":{"id":"mw-reference-text-cite_note-30"}}' id="cite_ref-30" rel="dc:references" typeof="mw:Extension/ref"><a href="./January_4#cite_note-30" id="mw6Q" style="counter-reset: mw-Ref 30;"><span class="mw-reflink-text" id="mw6g">[30]</span></a></sup>
<span class="mw-reference-text reference-text" id="mw-reference-text-cite_note-30"><cite about="#mwt145" class="citation journal cs1" id="CITEREFNeumann1987">Neumann, Peter G. (1987-02-02). <a class="external text" href="https://catless.ncl.ac.uk/Risks/4.45.html" id="mwCNU" rel="mw:ExtLink nofollow">"The RISKS Digest, Volume 4 Issue 45"</a>. <i id="mwCNY">The RISKS Digest, Volume 4 Issue 45</i>. <b id="mwCNc">4</b> (45). <a class="external text" href="https://web.archive.org/web/20210720061243/http://catless.ncl.ac.uk/Risks/4.45.html" id="mwCNg" rel="mw:ExtLink nofollow">Archived</a> from the original on 2021-07-20<span class="reference-accessdate" id="mwCNk">. Retrieved <span class="nowrap" id="mwCNo">2021-07-20</span></span>.</cite><span about="#mwt145" class="Z3988" id="mwCNs" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.genre=article&amp;rft.jtitle=The+RISKS+Digest%2C+Volume+4+Issue+45&amp;rft.atitle=The+RISKS+Digest%2C+Volume+4+Issue+45&amp;rft.volume=4&amp;rft.issue=45&amp;rft.date=1987-02-02&amp;rft.aulast=Neumann&amp;rft.aufirst=Peter+G.&amp;rft_id=https%3A%2F%2Fcatless.ncl.ac.uk%2FRisks%2F4.45.html&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3AJanuary+4"></span></span>