About this tool

Understand complex workdays without creating an account

Work Hours Calculator helps you record night shifts, split days, long duties, professional travel, training, breaks, interventions and differences between planned and actual hours.

The application was designed by an occupational physician to make atypical schedules easier to understand. This does not constitute medical certification or individual medical advice.

Your records remain in this browser unless you choose to export them.

Terms and limitations

A personal recording and estimation tool

Results are personal records and estimates. They do not replace national law, collective agreements, company rules, payslips, payroll validation or official employer records.

The application does not provide legal, payroll or medical guarantees. Seek advice from a competent professional whenever a calculation may affect your rights, health or remuneration.

CSV files, printed reports and backups may contain schedules, names, contexts and notes. Review every exported file before sharing it.