Friendly Toolkit
Date Calculator
How many days between dates?
Days between two dates, business days, and adding or subtracting days, weeks or months.
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Suggest an improvementCounting days between dates
By default the end date isn't counted, so Monday to Friday is 4 days. Tick Include the end date to count it (5 days), which is how you'd count days of a holiday or a notice period.
Good to know
What are business days?
Monday to Friday. Weekends are skipped. Public holidays aren't included, because they differ by country and region.
What happens when I add a month to 31 January?
You get the last day of February (28 or 29). Adding months never jumps into the following month.
Can I share a calculation?
Yes. The dates are kept in the page link, so copying it shares the same result.