DeadlineDays
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Public Holidays

Review holiday data planned for business-day and deadline calculations.

No login. No database. Calculator inputs are not stored on a server.

Use this page to review public holidays that can affect business-day and deadline calculations.

Public Holidays

Review the date inputs, country settings, weekend rules, and holiday options this calculator will use.

Prepare the country and year you want to review. Holiday data will be fetched in the browser and cached safely.

Country

Example: US

Weekend rule

Example: SAT_SUN

Holidays

Public and custom holiday support

Result area

The result summary area is reserved for browser-side calculations. It will show counted business days, skipped weekends, holidays, and date keys without placing ads beside action buttons.

Holiday lookup method

Holiday data is requested by country and year, then mapped into date-only records for business-day calculations.

  1. Request holidays from Nager.Date by country and year.
  2. Cache browser-side results for faster repeat lookups.
  3. Use holiday date keys when excluding non-working dates.

Examples

Country holiday lookup

Input
Country: US, Year: 2026
Output
A list of date-keyed public holidays

The date keys can be reused by calculators without timezone drift.

FAQ

Where does holiday data come from?

The planned integration uses Nager.Date public holiday data with browser-side caching.

Related calculators

Business Days CalculatorCount working days between two dates with weekend and holiday settings.Invoice Due Date CalculatorEstimate payment due dates using net terms, weekends, and holidays.Shipping Date CalculatorEstimate ship-by or delivery windows with working-day assumptions.

Disclaimer

Holiday data is a planning reference. Always verify official public holiday calendars for critical deadlines.