Updated September 6, 2026
Deterministic calculations
The tools use arithmetic and calendar operations. They do not use an LLM to invent a result. A result can be reproduced with the same inputs. Input validation prevents negative quantities where they do not make sense and rejects contradictory hour totals.
Work time
The timecard tool subtracts clock times and unpaid minutes. An earlier end time means the following day; equal times mean zero duration. Date-specific time-zone and daylight-saving changes are outside this time-only model.
Pay estimates
Work-hour overtime uses 1.5 times the entered rate above a configurable weekly threshold. The differential tool includes eligible premiums in a weighted regular rate. Neither tool establishes legal entitlement, taxes or take-home pay.
PTO and staffing
PTO uses an aggregate ending-balance cap, not a chronological accrual ledger. FTE uses scheduled baseline hours and applies shrinkage once. It does not solve shift assignments or service-level queues.
Calendar exports
Dates use UTC internally to avoid local date shifts. ICS work markers are all-day events. Paydays are unadjusted for holidays. Imported calendar files do not synchronize future changes.
Corrections
If an example and result disagree, report the URL, inputs, observed result and expected result without sending payroll documents or personal employee information.
Expanded planning tools
The business-days tool includes both endpoints, uses selected weekdays and excludes user-supplied closures. The bulk converter totals original values before display rounding. Unlike the aggregate PTO calculator, the balance ledger applies a cap to each earning event in date order. The shift-coverage checker models a repeating daily roster with constant demand and explicitly entered break segments.