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Days Between Dates Calculator
Days, weeks, months, years and business days
Giorni
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Settimane
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Mesi
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Anni
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Lavorativi
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How to calculate days between two dates
Our tool calculates the exact difference between two dates in days, weeks, months, years and even business days (excluding Saturday and Sunday). It's useful for calculating contract duration, accrued vacation, project deadlines or an event's age in days.
Use cases
- Rental and lease contracts
- Leave, vacation and permits
- Tax and legal deadlines
- Project and sprint planning
- Age or seniority calculation
Business days
Business days calculation excludes Saturday and Sunday. It does not account for local holidays (e.g. Christmas, Easter, national holidays): those require a country-specific calendar. A rough approximation for Italy is ~250 business days per year.
Frequently asked questions
Does the calculation include the end date?
By default no, it follows the mathematical convention (e.g. Monday to Wednesday = 2 days). Enable "Include end date" for inclusive counting (3 days).