Here&#39;s one list that has some values that might be worth supporting at a user level, day hours and year months in particular:<br><a href="http://dev.mysql.com/doc/refman/5.1/en/date-and-time-functions.html#function_date-add">http://dev.mysql.com/doc/refman/5.1/en/date-and-time-functions.html#function_date-add</a><br>

<br clear="all">Joe Murray, PhD<br>President, JMA Consulting<br><a href="mailto:joe.murray@jmaconsulting.biz">joe.murray@jmaconsulting.biz</a><br>skype JosephPMurray twitter JoeMurray<br>416.466.1281<br>Hello,<br><div class="gmail_quote">

<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
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Thanks for the responses, but going back to my original question:<br>
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&gt; Is there any module out there that provides a generic &#39;interval&#39; form element?<br>
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The answer seems to be: &#39;No&#39;. I might write one.<br>
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Regards<br>
Steven Jones<br>
ComputerMinds ltd - Perfect Drupal Websites<br></blockquote></div><br>