Working Day Calculator
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Count or add working days using your own weekdays and manual excluded dates. Choose date boundaries and inspect every counted or skipped date.
Preparing your tool…
A visual example
Example: the boundary choice changes the count
- 27–31 March 2026
- Fri 27 · selected
- Sat 28
- Sun 29
- Mon 30
- Tue 31 · selected
Include both boundaries: 2
Monday–Friday week. Monday 30 March is manually excluded.
- Same dates and manual exclusion
- Fri 27
- Sat 28
- Sun 29
- Mon 30
- Tue 31 · selected
Exclude the start: 1
Friday 27 no longer counts. Tuesday 31 remains included.
Specify the boundary rule before comparing two working-day calculations.
Illustrative example. Synthetic example. 30 March is a manual exclusion, not a claim about public holidays.
How to use it
- Choose count or add mode and enter the dates or signed amount.
- Select working weekdays, manual exclusions and boundary rules.
- Review every included or skipped date and download the calculation.
Example: 27–31 March 2026 contains two Monday–Friday working dates when 30 March is manually excluded and both boundaries count.
Details & limits
Dates 1900–2100; at most 3,660 inspected calendar dates. Add −1,000 to 1,000 working days. Up to 500 excluded dates / 6,000 characters. No regional holiday lookup or legal deadline calculation.
Are public holidays or legal deadline rules included?
No. Enter your own excluded dates and choose boundaries explicitly. The result applies only to those settings.