About Working Calendar

A small, independent tool for a question that deserves a clear answer: how many working days are there?

Working Calendar combines date calculators with monthly and yearly working-day tables for the United States and United Kingdom. It is built for people planning project time, checking a date span or working backwards from a target date.

What we make explicit

• The holiday calendar and UK region used for a calculation.
• Whether the first and last dates count.
• Which weekends and holidays were excluded.
• The source version and supported date range.

Scope

The current release supports 2026–2028 dates and publishes annual pages for 2026 and 2027. It assumes a Monday–Friday workweek. Company closures, personal leave, half-days and business hours are outside its scope.

We are not a government service and are not affiliated with OPM or GOV.UK. US federal calculations are separate from bank, ACH, Federal Reserve and securities exchange calendars.

Built to be inspectable

The calculation runs in your browser. No account is required, and this release has no ads or analytics. The annual tables remain readable without JavaScript. We publish the holiday sources and exact snapshot so results can be checked.

Questions and corrections go directly to the project contact on our Contact page. No response-time guarantee is offered.