How are moving holidays calculated?

Our tool uses the astronomical Easter algorithm (Computus) to dynamically identify the exact dates of variable holidays for any given year.

Is the start date included in counting?

In most commercial and contractual frameworks, the start date is excluded while the end date is included. You can customize this behavior using the checkboxes above.

Is this service free?

Yes, all tools on NetEasyTools are free and run directly in your browser, with no account required.

Does the site store my data?

No. All your data is stored locally in your own browser for your convenience and is never sent to any external server or database.

Free Online Business Days & Deadlines

How to use

Select your preferred calculation mode: 'Between Two Dates' or 'Add/Subtract Days'.

Enter your starting date and ending date or number of business days.

Toggle whether Saturday should be counted as a working day.

Review the breakdown of business days, weekend days, and national holidays.

Optionally add custom regional or corporate non-working days.

About Free Online Business Days & Deadlines Calculator

The Business Days Calculator is an intuitive and comprehensive utility for professionals, project managers, legal staff, and students who need precise date computations. It allows you to quickly determine the exact number of working days between any two dates or project a future deadline by adding business days to a starting date.

The tool automatically calculates national and variable religious holidays (including Easter, Carnival, and Corpus Christi via astronomical formulas), allows toggling Saturday work schedules, and lets you add custom regional dates with instant recalculation. Everything is processed locally in your browser with absolute data privacy.

Real-World Use Cases

Legal & Contractual Deadlines

Accurately compute civil procedure deadlines, judicial response windows, and vendor contract milestones.

Project Management & Sprints

Plan agile deliverables, delivery dates, and work sprints taking public holidays into account.

HR & Payroll Planning

Determine exact billable hours, employee vacations, and monthly working day counts.

Best Practices & Tips

When counting legal deadlines, standard rules usually exclude the start date and include the final deadline date. Keep the 'Include End Date' option active for standard compliance.