Working Day (Business Day)

A working day, or business day, is a day people are normally expected to work - typically Monday to Friday, excluding weekends and public holidays. It is the unit behind deadlines, leave, and delivery estimates.

How it is counted

  • Start from all calendar days in a range.
  • Remove weekends (usually Saturday and Sunday).
  • Subtract public holidays that fall on a weekday.

The result is the working days available for planning.

Why it matters

Deadlines and leave are usually expressed in working days, so an accurate count avoids over-promising.

How Sandtime.io fits

Plan the days, then let Sandtime.io record the hours actually worked on them, so plans and reality line up. Count working days first with the working days calculator. If some work falls on a Saturday or Sunday, see Can I log time on weekends?

Working days exclude public holidays, frame annual leave planning, are the days a timesheet usually covers, and group into a week number for reporting.

Working hours in 2026 and 2027

Calendar weekdays and statutory working-time totals answer different questions. In Poland, Saturday public holidays also reduce the statutory hours even though Saturday is already excluded from a Monday-to-Friday calendar. See the 2026 country guides, the Polish statutory working-time calculator, and the 2027 preview for Poland.

More definitions

Explore other time tracking and workforce management definitions.

Public Holiday

Official days off recognized by a country’s government. Most employees are entitled to paid leave.

Read more →

Annual Leave

The paid holiday an employee is entitled to each year for rest, with a statutory minimum in most countries (at least four weeks under the EU directive).

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Undertime

Hours logged below the daily or weekly goal. Sandtime.io shows undertime as an unfilled progress bar - the gap between what you planned to work and what you tracked.

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Timesheet

A record of hours worked by an employee over a specific period. Used for payroll, billing, and compliance.

Read more →

Keep exploring

Continue with the most relevant Sandtime.io pages for this topic.

Can I log time on weekends?

Yes. Weekends are hidden by default in Timesheets, but you can show them and Sandtime.io remembers the preference.

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Include weekends in worktime

Show Saturday and Sunday in Timesheets by enabling Show weekends in Filters. Weekend hours count toward the weekly total but not the five-day goal target.

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Working Days Calculator

Count the business days between two dates, excluding weekends and public holidays.

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Business Day Calculator

Add or subtract working days from a date, skipping weekends and public holidays, to find a deadline.

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