calculate_work_hours
Calculate regular/overtime/double-time hours and gross pay from clock in/out entries. Rulesets: federal (40h/week), california (8h/day 1.5x, 12h/day 2x, 7th-day rule), alaska (8h/day or 40h/week), colorado (12h/day or 40h/week), nevada (8h/day below $18/h, else weekly). Full calculators at https://hourledger.com