Business duration field in incident form is being set to '0' seconds.Issue Incident Management restores normal service operation while minimizing impact to business operations and maintaining quality.The issue is the business duration field is being set to '0' seconds. Steps to reproduce:1.Create an incident record.2.After few minutes of time close the incident record.3.Check the business duration field where it shows as '0' seconds.CauseThe business duration field is set using mark closed business rule where the calDateDiff api depends on the calendar schedule.The incident is processed out of the calendar schedule slot then the API would return the value as '0' seconds.ResolutionCalendar record which is considered for the calDateDiff api is mentioned below:https://<instance-name>.service-now.com/sys_calendar.do?sys_id=bea4c03cc611227801d411166792a145&sysparm_record_target=sys_calendar&sysparm_record_row=1&sysparm_record_rows=1&sysparm_record_list=ORDERBYnamePlease do check the above calendar record to calculate the schedule timmings.