Solution : https://service.sap.com/sap/support/notes/838164 (SAP Service marketplace login required)
Key words :
date tab pages reason, terms deadline monitoring, attached correction instructions, reference date/time, incorrect default time, latest start time, date defined, latest start, default time, latest startif
Related Notes :
1396107 | Workflow deadlines: Behavior with time 00:00:00 |