Calculates the legal notice period for resignation or dismissal in Ireland, based on your length of service and contract terms.
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Working Days Calculator for Ireland
Calculating the exact number of working days between two dates is a common need in Irish business and legal contexts. Whether you're determining a statutory notice period, planning project timelines, or requesting annual leave, you need to exclude weekends and Irish public holidays. This calculator provides a quick and reliable way to do just that.
What Counts as a Working Day?
In Ireland, a standard working day is typically Monday to Friday. Saturdays and Sundays are considered weekend days and are excluded. Additionally, the ten Irish public holidays are non-working days. If a public holiday falls on a Saturday or Sunday, it is not considered a weekday off. However, for some holidays like Christmas Day and St. Stephen's Day, if they fall on a weekend, the public holiday observance shifts to the next Monday (and sometimes Tuesday), which then becomes the non-working day. This calculator accounts for this by checking the actual date of each holiday against your selected year.
How the Calculation Works
The calculator follows a simple process:
- Adjust Dates: You can choose to include or exclude the start and end dates themselves in the count. This is crucial for notice periods, where the day of notice is often not counted.
- Count Total Calendar Days: It first calculates the total number of days in the adjusted period.
- Subtract Weekends: It precisely calculates the number of Saturdays and Sundays within that period.
- Subtract Public Holidays: It calculates the dates of all ten Irish public holidays for your selected year (including variable ones like the first Monday in May). It then removes any that fall on a weekday (Monday to Friday) within your date range.
- Result: The final number is your total working days.
Example: Calculating a Notice Period
Imagine you need to give one month's notice on the 15th of April 2026, and your contract specifies calendar month notice. The notice period would run from April 15th to May 14th inclusive. Using the calculator with start date 2026-04-15, end date 2026-05-14, and both inclusion options set to 'Yes', you would find the working days. You must select 2026 as the holiday year. The calculator will exclude weekends and any public holidays in that period, such as the May Day bank holiday (Monday, 4th May 2026), giving you the exact number of days you are required to work during your notice.
Common Use Cases
- Employment Notice Periods: Many employment contracts require notice to be given in working days.
- Annual Leave Requests: Calculate the number of leave days you will use when booking a holiday that spans weekends.
- Contractual Deadlines: Determine the delivery timeline for a project or service.
- Legal and Statutory Deadlines: Some legal timeframes, like those for responding to a claim, are defined in working days.
Important Considerations
This calculator uses the standard list of Irish public holidays. Always double-check with official sources if dealing with critical deadlines. For periods spanning multiple years, you may need to perform separate calculations for each year, as the 'Year for Public Holidays' input applies to the entire period. The result is an estimate; for absolute precision in legal matters, consult a calendar or seek professional advice.
Next Steps: Formalise Your Notice
Once you've calculated your notice period, you may need to formalise it in writing. For a professional resignation, you can use a Letter to Provide Notice of Resignation to ensure you include all necessary information and adhere to professional standards.