Methodology
Calcori is designed to make everyday time and date calculations transparent. We show the arithmetic and keep country-specific assumptions explicit.
Work hours
Net worked time is calculated from end time minus start time minus unpaid breaks. Overnight shifts are handled by rolling the end time into the next calendar day when needed.
Business days
Business-day tools exclude Saturdays and Sundays. Where a country data layer is available, supported public holidays can also be excluded. Each local calculator states the limits of its current coverage.
Holiday coverage
United StatesFederal holidays and observed dates.
GermanyNationwide public holidays; state-specific holidays are not yet included.
BrazilNational public holidays; state and municipal holidays are not yet included.
United KingdomEngland and Wales bank-holiday calendar; Scotland and Northern Ireland differ.
CanadaCanada-wide / CRA-recognized public holidays; provincial and territorial rules can differ.
AustraliaCore national public holidays; state, territory, substitute and regional holidays can differ.
SpainCore nationwide holidays; autonomous-community and local holidays vary.
MexicoFederal mandatory rest days under Article 74; election-day and local observances are not automatically added.
Primary official references
Local rules
State, provincial, municipal, collective-bargaining, payroll and tax rules can differ. Calcori keeps those assumptions separate from basic arithmetic and labels limitations on the relevant calculator.