https://www.infopathdev.com:443/forums/39.aspxNew to InfoPath? Search to see if your question has already been answered. If it has not, then ask it here or the appropriate topic forum.enCommunityServer 2007 SP3 (Build: 31118.962)https://www.infopathdev.com:443/forums/thread/81763.aspxFri, 17 Aug 2012 17:09:04 GMT033a2e2d-04e2-4a9d-be01-a4634161eefd:81763Anson Hidajat0https://www.infopathdev.com:443/forums/thread/81763.aspxhttps://www.infopathdev.com:443/forums/commentrss.aspx?SectionID=39&PostID=81763You&#39;ll likely need code to calculate the difference between two dates.&nbsp; Alternatively, you can use qRules to do this if you don&#39;t want to write code.&nbsp; There is a DateDiff function that does exactly what you want.&nbsp; More info on qRules here: <a href="http://www.qdabra.com/en/products/qRules_new.aspx">http://www.qdabra.com/en/products/qRules_new.aspx</a>https://www.infopathdev.com:443/forums/thread/81759.aspxFri, 17 Aug 2012 15:58:16 GMT033a2e2d-04e2-4a9d-be01-a4634161eefd:81759Non-programmer0https://www.infopathdev.com:443/forums/thread/81759.aspxhttps://www.infopathdev.com:443/forums/commentrss.aspx?SectionID=39&PostID=81759<p class="MsoNormal" style="MARGIN:0in 0in 0pt;"><font face="Times New Roman" size="3">I have an InfoPath form that already has a person’s check in, start time, and, end time but I do not know how to calculate the two time points that I want to track.</font></p> <p class="MsoListParagraphCxSpFirst" style="MARGIN:0in 0in 0pt 0.5in;TEXT-INDENT:-0.25in;mso-list:l0 level1 lfo1;"><font face="Times New Roman"><span style="mso-list:Ignore;"><font size="3">1.</font><span style="FONT:7pt &#39;Times New Roman&#39;;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span><font size="3">Time between Check in and Start Time</font></font></p> <p class="MsoListParagraphCxSpLast" style="MARGIN:0in 0in 0pt 0.5in;TEXT-INDENT:-0.25in;mso-list:l0 level1 lfo1;"><font face="Times New Roman"><span style="mso-list:Ignore;"><font size="3">2.</font><span style="FONT:7pt &#39;Times New Roman&#39;;">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span><font size="3">Time between Start Time and End Time</font></font></p><font face="Times New Roman" size="3">&nbsp;</font> <p class="MsoNormal" style="MARGIN:0in 0in 0pt;"><font face="Times New Roman" size="3">I also want these fields not to be visible to the users of the form.</font></p> <p class="MsoNormal" style="MARGIN:0in 0in 0pt;"><font face="Times New Roman" size="3">Can someone shed some light on how I can do this with an existing form?</font></p> <p>&nbsp;</p>