Duration calculation issue in Business Rule ScriptsIssue <!-- div.margin { padding: 10px 40px 40px 30px; } table.tocTable { border: 1px solid; border-color: #e0e0e0; background-color: #fff; } .title { color: #d1232b; font-weight: normal; font-size: 28px; } h1 { color: #d1232b; font-weight: normal; font-size: 21px; margin-bottom: 5px; border-bottom-width: 2px; border-bottom-style: solid; border-bottom-color: #cccccc; } h2 { color: #646464; font-weight: bold; font-size: 18px; } h3 { color: #000000; font-weight: bold; font-size: 16px; } h4 { color: #666666; font-weight: bold; font-size: 15px; } h5 { color: #000000; font-weight: bold; font-size: 13px; } h6 { color: #000000; font-weight: bold; font-size:14px; } ul, ol { margin-left: 0; list-style-position: outside; } --> Duration calculation issue in Business Rule Scripts CauseUsing "+" and "-" operators in script might cause an issue. Example: Below lines of code is causing an issue:current.u_time_to_resolve.setDateNumericValue(gs.dateDiff(opened, resolved, true)*1000 + (opened_at_num_value - failure_time_num_value)); Resolution Please make use of Duration Calculator instead to calculate duration between two dates instead of dateDiff. https://developer.servicenow.com/dev.do#!/reference/api/orlando/server_legacy/c_DurationCalculatorAPIhttps://docs.servicenow.com/csh?topicname=c_DrtnClDueDate.html&version=latest#c_DrtnClSmplDrt