Country-Specific Working Day,
Business Day & Deadline Calculators
Each country has its own holiday calendar, business-day definitions, notice-period rules, and court or contract timing quirks. Use the calculator built for your jurisdiction.
Working Day Calculators by Country
New Zealand
workingdaycalculator.nz
Working day calculator with Mondayisation and regional anniversary rules
Australia
workingdaycalculator.com/au
Business day calculator for state holidays, SOPA and court timelines
United Kingdom
workingdaycalculator.co.uk
Business day calculator with CPR clear days and bank holiday differences
Canada
workingdaycalculator.ca
Deadline calculator for provincial holidays, court rules and business dates
Ireland
workingdaycalculator.com/ie
Working day calculator for court time rules, conveyancing and notice periods
Singapore
workingdaycalculator.com/sg
Deadline calculator for ROC 2021, notice periods and public holiday rules
Hong Kong
workingdaycalculator.hk
Business day calculator for general holidays, typhoon disruption and notices
Explore Resources by Country
Start with the calculator built for that jurisdiction, then use the matching article hub, year planner, and annual summary for local holiday and deadline planning.
New Zealand
Working day calculator with Mondayisation and regional anniversary rules
Australia
Business day calculator for state holidays, SOPA and court timelines
United Kingdom
Business day calculator with CPR clear days and bank holiday differences
Canada
Deadline calculator for provincial holidays, court rules and business dates
Ireland
Working day calculator for court time rules, conveyancing and notice periods
Singapore
Deadline calculator for ROC 2021, notice periods and public holiday rules
Hong Kong
Business day calculator for general holidays, typhoon disruption and notices
Featured Guides
Evergreen explainers for the country-specific rules and deadline traps that people miscount most often.
NZ Mondayisation Rules: Which Holidays Move and Why
Read the evergreen guide for new zealand working day, business day, and deadline-counting quirks.
Read guideState-by-State Holiday Differences: Why Australia Has No National Calendar
Read the evergreen guide for australia working day, business day, and deadline-counting quirks.
Read guideCPR Clear Days & Court Deadline Calculator: The Quirks That Catch Even Careful Lawyers
Read the evergreen guide for united kingdom working day, business day, and deadline-counting quirks.
Read guideWorking Days vs Calendar Days in Canada: The Small Words That Change Everything
Read the evergreen guide for canada working day, business day, and deadline-counting quirks.
Read guideWorking Days vs Calendar Days in Ireland: the definition depends on who's asking
Read the evergreen guide for ireland working day, business day, and deadline-counting quirks.
Read guideROC 2021 Court Deadlines: The One Rule Everyone Gets Wrong
Read the evergreen guide for singapore working day, business day, and deadline-counting quirks.
Read guideWorking Days vs Calendar Days in Hong Kong Explained
Read the evergreen guide for hong kong working day, business day, and deadline-counting quirks.
Read guideDeadline Calculation Made Simple
Calculate deadline dates and notice periods, chain sequential deadlines, and apply jurisdiction-specific rules — all in one place.
Frequently Asked Questions
Quick answers to help you pick the right calculator.
What is a working day?
Generally, a working day is a weekday (Monday to Friday) that is not a public or bank holiday, but each country has their own quirks — our calculators understand the quirks.
How is this different from a regular date calculator?
Unlike simple date calculators, we calculate deadline dates and notice periods (e.g. '14 working days from today'), handle sequential multi-step deadlines, and support jurisdiction-specific rules like short periods in court rules and clear days.
Can I calculate legal or court deadlines?
Yes. The UK calculator supports CPR court rules and clear-day counting. Canada handles provincial and federal court rules. Ireland supports RSC Order 122. Singapore covers ROC 2021 filing deadlines. Australia handles SOPA and court timelines. All calculators handle statutory notice periods.
Does the calculator include local holidays?
Yes. New Zealand, Australia, UK, Canada, Ireland, Singapore, and Hong Kong calculators each exclude their national and regional public holidays automatically, ensuring accurate deadline calculations.
How can I verify the results?
Every calculation includes a visual timeline showing the period, a detailed list of excluded dates (weekends, holidays), and the ability to export results to PDF for your records or to share with colleagues.