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Holidays optimizer
New version 2026
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Define a custom period
AI Assistant
Assistant: Hello! I handle your requests in natural language, such as:

“Analyze the period from November 1, 2025, to April 25, 2028.”
or
“Add 100 business days to February 25, 2026.”
or
“Next Thursday at 2:12 PM + 124 working hours”
or
“I won't be working first week of next may (going to Greece)”
Assistant: I understand all languages.
Send
Make
every
day
count
..in France
| Bas-Rhin, Haut-Rhin, Moselle

Working days

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A working day or business day is a day of week except public holidays.

Workingdays.ca calculates for you the number of working days and public holidays between two dates in Canada (your office tools won't know them since they change every year) .

Just pick up (or enter) start and end dates, the analysis will start automatically !
Use the blue circles shortcuts to change the dates quickly (add add one day or remove remove one day one day/month/year).
Notice also that you can change the results (within the green left hand result panel adjust result) and thus add any number (positive or negative) of working days to a given date. With the padlock icons you can decide if you want to add days to start date lock date or remove days from end date unlock date.
Use the setup screen, if in your company working days don't go from Monday to Friday or to select public holidays relevant to you.

 Custom dates explanation

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Link explanation