Detailed guide
How to use the working days between two dates
What the working-days calculator counts
After you enter a start and end date, the calculator checks every calendar date in the range. Mondays, Tuesdays, Wednesdays, Thursdays and Fridays count as working days. Saturdays and Sundays are reported separately as weekend days. Both boundary dates are included, which makes the result useful for project duration, processing estimates and general capacity planning.
Public holidays are deliberately excluded from the logic of this calculator. It answers one clear question: how many regular weekdays fall between the dates? To subtract national and regional public holidays, use the regional working-day calculator or vacation planner instead.
Choosing the correct start and end dates
Enter the first and last dates that belong to the period. A project starting on Monday and ending on Friday of the same week contains five working days. If a weekend is inside the range, those days are removed automatically. The same rule applies across months and calendar years.
Part-time work, rotating shifts and individual non-working weekdays cannot be inferred from two dates. In those cases, the result is a neutral Monday-to-Friday baseline that must be adjusted to the actual work schedule.
Common uses and important limits
Typical uses include estimating a delivery period, comparing project windows, counting available office days or preparing a rough leave plan. The transparent split between weekdays and weekends makes it easy to see why the total differs from the number of calendar days.
Legal deadlines may use their own definitions for the first counted day, weekends and public holidays. A deadline that ends on a non-working day can also move under applicable law. This calculator is therefore a planning tool, not a legally binding deadline determination.