https://community.appian.com/discussions/f/general/9181/problems-creating-a-24-7-calendarI&#39;m having a problem when creating a 24/7 calendar. I login to the admin / system page and view the default calendar. I click the create new option and call my new calendar PCS247. I ctrl select all columns (S thr to S) and untick the Mark as non workingen-USTelligent Community 12https://community.appian.com/thread/41104?ContentTypeID=1Fri, 06 Jan 2017 04:56:40 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:12fd1127-fbab-455d-b2e4-615cb3c5a925Tom RyanDepending on your internationalization settings, the format for the times will differ. If 23:59 is not working for you, try &quot;11:59 PM&quot;. This would give you a working day of 23.98 hours. Depending on where you are making your calculations, if that is causing issues, you might be able to use one of the rounding functions to round the value up to 24.<div style="clear:both;"></div>https://community.appian.com/thread/41064?ContentTypeID=1Thu, 05 Jan 2017 13:43:10 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:3235a2d9-8388-450c-9f39-b431e92822adpauls985...:59:59 but using seconds doesn&#39;t seem to be valid. ( it allows the input, but calculates working hours as 0)<br /><div style="clear:both;"></div>