Calculate notice periods, deadlines, leave windows, payday distance, and date differences with region-aware rules.
In the UK, notice dates, leave dates, and business-day deadlines often depend on whether weekends count, whether bank holidays are excluded, and whether the contract sets a rule that is more specific than the default assumption.
If the date is contract-sensitive, check whether the relevant rule is calendar days, working days, or a fixed number of weeks, because those three approaches can land on different dates.