List the handover durations
Synthetic outgoing duty ends 16:00; incoming starts 15:45. Both are present during that overlap only. Handover requires a 12-minute briefing then a 6-minute joint access check; neither can run in parallel. Completing only the briefing does not complete handover.
| Item | Minutes | Dependency |
|---|---|---|
| Available overlap | 15 | 15:45–16:00 |
| Briefing | 12 | First |
| Joint access check | 6 | After briefing |
Fit sequential work into overlap
- Find the shared presence interval
- Add sequential durations
- Compare required and available time
Do not erase the access check to make the plan fit.
How many additional overlap minutes are required?
Show the worked answer
Three:12+6=18 required against 15 available. Starting incoming duty 15:42 would provide 18 minutes if that revised window is confirmed.
Retain the unfinished check
| Case | Decision | Reason |
|---|---|---|
| Incoming 15:45 | Short 3 min | 18 required versus 15 |
| Confirmed incoming 15:42 | Fits exactly | 18 shared minutes |
Record a confirmed revised start or a separately authorised handover arrangement. Until then the access check remains unplanned, not silently completed.