When generate a forecast report from Web UI for a box and its jobs. The duration of each job/box is always 1 min.
Release : r12.0.SP1
Component : CA Workload Automation AE (AutoSys)
Its a bug in noted in WAAE r12.0.SP1.
You may have to apply fix to resolve the issue, please find the information and the fix in below link.
https://support.broadcom.com/download-center/solution-detail.html?aparNo=99111171&os=LINUX%20-ALL