Business day guides & tips
Plain-English guides covering business days, working days, bank holidays, date ranges, shipping estimates and deadline planning.
Latest guides
Use these articles to understand common working day questions, then check exact dates with the calculator.
What does 5 business days mean?
A plain-English guide to what 5 business days means, why weekends usually do not count, and how bank holidays can affect the final date.
What does 5 calendar days mean?
5 calendar days means five consecutive calendar dates, including weekends. See exact examples and deadline rules.
Do calendar days include weekends?
Yes, calendar days include weekends. Learn the difference between calendar and business days with examples.
Business day calculator vs Excel
Compare an online business day calculator with Excel WORKDAY and NETWORKDAYS for deadlines and planning.
Google Sheets business days formula
Count or add business days in Google Sheets using NETWORKDAYS and WORKDAY functions.
Excel NETWORKDAYS formula explained
Use Excel NETWORKDAYS to count working days between dates and exclude holidays.
Excel WORKDAY formula explained
Use Excel WORKDAY to add business days to a date and calculate a future working-day deadline.
How to exclude bank holidays in Excel
Exclude bank holidays from working day calculations in Excel with a holiday list.
Business days vs calendar days: what is the difference?
Understand the difference between business days and calendar days, with simple examples for shipping, work deadlines, and customer response times.
Do bank holidays count as business days?
A practical guide to whether bank holidays count as business days and how public holidays affect working day calculations.
How to add business days to a date
Learn how to add business days to a start date, skip weekends, and allow for public holidays when calculating a due date.
Working days in 2026 in the UK
A practical overview of working days in the UK in 2026 and why weekends and bank holidays affect yearly totals.
How to calculate working days between two dates
A simple guide to calculating working days between two dates, including weekends, public holidays, and inclusive date ranges.
Business day shipping explained
What business day shipping means, why weekends are skipped, and why a 3-5 business day delivery can take longer than expected.
Using business days for customer service SLAs
How business days are used in customer support response times, service levels, and internal turnaround targets.
Complaint deadlines: working days and response dates
A practical guide to using working days when estimating complaint acknowledgement and response deadlines.
Common business day calculation mistakes
Avoid common working day calculation mistakes, including counting weekends, missing holidays, and misunderstanding start dates.