The Chronos Date/Time Library

<br style="font-size: 50%"> <center> <table border="0" valign="center" style="width: 96%; text-align: left; margin-left: auto; margin-right: auto;"> <tbody><tr><td> <center> <table width=94%> <tbody> <tr> <td><center> <img src="http://www.chronos-st.org/images/Chronos-small.png"> <br style="font-size: 30%" /> <a style="text-decoration: none;" href="http://en.wiktionary.org/wiki/synchrony" target="_top"><span class="boldgold">χρόνο&sigmaf;</span></a> </center></td> <td><table width="100%" border="0" bgcolor="white" cellpadding="0"> <tbody> <tr> <td align="left" style="text-align: left;"> <div class="maintitle"><span class="gold"><a style="text-decoration: none;" href="http://www.chronos-st.org/" target="_top">The Chronos Date/Time Library</a></span></div> <br> <b><span style="font-family: Helvetica,Arial,sans-serif; color: rgb(110, 110, 110);" id="clock"> <noscript><small><i>~ A code library for date/time computations ~</i></small></noscript></span></b> </td> <td align="right" style="text-align: right;"> <img src="http://www.chronos-st.org/images/SunDial.jpg" width=100 height=100> </td> <td align="right" style="text-align: right;"> <img src="http://www.chronos-st.org/images/st-balloon.jpg"> </td> </tbody> </table> </td> </tr> </tbody> </table> <table width=94% cellpadding=10> <tbody><tr><td> <table border=0 width="100%"> <tr style="background-color: rgb(248, 248, 248);"> <td style="text-align: left; font-family: Helvetica,Arial,sans-serif; color: rgb(128, 128, 128);"> <span style="font-size: 14;"> <noscript></noscript> <script type="text/javascript"> document.write('Page retrieved '+formatDateAndTimeAsRFC2822(new Date())) </script> </span> </td> <td style="text-align: right; font-family: Helvetica,Arial,sans-serif; color: rgb(128, 128, 128);"> <span style="font-size: 14;"> <noscript>Page published Tue, 28 Feb 2006 04:44:50 +0000 (UT: Universal Time)</noscript> <script type="text/javascript"> document.write('Page published '+formatDateAndTimeAsRFC2822(new Date(1141101890907))) </script> </span> </td> </tr> </table> </td></tr> <tr><td> <table width=94%> <tbody> <tr><td> <h1>What is Chronos?</h1> Chronos is a reusable code library, written in <a href="http://en.wikipedia.org/wiki/Smalltalk" target="_top">Smalltalk</a>, for the creation of and computations with date and time values. It provides classes to represent and perform computations with point-in-time values, temporal extents (<b>durations of time</b>) and <b>temporal intervals</b> (specific periods of time, such as the quarter from 15 July 2005 through 14 October 2005.) Chronos implements the <a target="_top" href="http://www.smalltalk.org/versions/ANSIStandardSmalltalk.html"><b>ANSI-Smalltalk Standard</b></a> <b>DateAndTime</b>, DateAndTimeFactory, <b>Duration</b> and DurationFactory protocols. <p>Currently, there are versions available for VisualWorks, Squeak and Dolphin--although the Squeak and Dolphin versions lack some of the functionality herein described.</p> <p>Chronos has been designed and architected for inter-Smalltalk portability. It is intended as a reference/standard implementation of advanced, rich date/time functionality for all Smalltalk flavors.</p> <p>The current distribution is a beta version--mostly because there will probably be significant API changes in order to more fully support leap seconds.</p> </td></tr> <tr><td> <br> <ul> <li><a href="http://www.chronos-st.org/Overview.html">Overvew of Chronos</a></li> <li><a href="http://chronos-st.blogspot.com/">Chronos Blog</a></li> <li><a href="http://www.chronos-st.org/frames/Communications.html">Contact</a></li> <li><a href="http://www.chronos-st.org/frames/Documentation.html">Documentation</a></li> <li><a href="http://www.chronos-st.org/frames/VisualWorks-Downloads.html">Downloads-VisualWorks</a></li> <li><a href="http://www.chronos-st.org/frames/Squeak-Downloads.html">Downloads-Squeak</a></li> </ul> </td></tr> </tbody> </table> </td></td> </tbody> </table> </body>