FA-94045 / Shift rostering labor rules / Member archive

Weekend detection assumes a Sunday-first week · case 05

Monday minutes receive the weekend premium and Saturday minutes do not.

Member previewVariant 5 · 3 implementations · 8 checks per implementation

Case contract

Shift [start, end] in minutes from Monday 00:00 and a base rate in cents per hour. Each minute earns base * (100 + pct) / 6000 cents where pct is 10 for 15:00-23:00, 15 for 23:00-07:00, else 0; on Saturday and Sunday (days 5 and 6) pct is the larger of that value and 12 (differentials do not stack). The exact total is rounded half up to a cent once.

Why this case matters

Shift differential calculations are where roster data meets payroll; stacking and day attribution errors are common.

One recorded failure

Sample boundary fixture

This sample comes from the broken implementation of a controlled reproducer.

Boundary fixture	Actual	Expected	Outcome
regression: weekend day index 1	`18364`	`19180`	Failed

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