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Time & Productivity Calculators

UK Business Days Calculator

Use this page to count working days between two dates or add working days to a start date.

Main calculator

Business Days Calculator

Calculate business days between two dates, excluding weekends and optional holidays

Calculate business days

Common time calculation checks

Useful for
Deadlines, planning, rota checks, and date arithmetic
Watch out for
Weekends, bank holidays, time zones, and inclusive counting rules
Best next step
Use the full calculator for exact inputs

How this time scenario works

Date and time calculations are simple when every day counts the same way, but real deadlines can treat weekends, bank holidays, and cut-off times differently.

Calendar days vs working days

Calendar days include weekends. Business days usually mean Monday to Friday and may or may not exclude bank holidays depending on the rule being applied.

Use as an estimate

For contracts, court deadlines, employment rights, travel, or immigration dates, always check the official rule for inclusive counting and non-working days.

Frequently asked questions

Does this include today?

That depends on the rule you are applying. The full calculator helps with the arithmetic, but official deadlines may define counting differently.

Are weekends counted?

Calendar-day calculations count weekends; business-day calculations usually exclude them.

Can time zones change the result?

For exact deadlines, yes. Time zones and cut-off times can matter.

Is this suitable for legal deadlines?

Use it as a check only. Confirm legal or contractual deadlines from the source rule.

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