Working days calculator

Working days per month, 2027

The simulator under the summary gives the same figure for any month from 2026 to 2028, with the bank holidays that fall in it.

How the count works

For a period between two dates, the calculator takes every calendar day from the first to the last, removes Saturdays and Sundays, then removes any bank holiday of the chosen nation that falls on a weekday. Substitute days count as bank holidays, so the Monday 28 December 2026 that stands in for Boxing Day is removed, not the Saturday. For "date after N working days", it moves forward one day at a time from the start date, skipping weekends and bank holidays, until it has counted N working days; with a negative number it counts backwards, which is useful for finding the last day to send something.

Where the bank holidays come from

The list is the one published by GOV.UK, read on 28 October 2026, and checked every month by a scheduled comparison. For years beyond the published list, the calculator applies the rules of the Banking and Financial Dealings Act 1971 and the usual proclamations, and says so under the result. A one-off holiday announced later, for a coronation or a jubilee, would be added when GOV.UK publishes it.

Typical uses

Notice periods written in working days, such as a supplier's terms of 30 working days. Delivery promises: ten working days from mid-December fall in January. Payroll: the last working day of a month, which moves when the month ends on a weekend or a bank holiday. Leave planning: how many working days a holiday will cost you, which is what your employer deducts; the bank holiday pay page explains how bank holidays fit in annual leave. For a simple count of calendar days to an event, the days until counter is quicker.

Bank holidays that change the count

The months that differ most between nations are January, because of the 2 January holiday in Scotland, March, because of St Patrick's Day in Northern Ireland, April or March, because Easter Monday is not a bank holiday in Scotland, July, because of the Twelfth in Northern Ireland, August, because the Scottish and English summer holidays fall in different weeks, and November, because of St Andrew's Day in Scotland. If your team works across nations, a deadline counted from Edinburgh can end on a different day from one counted from London. The calculator handles each case if you choose the right nation; when in doubt, use the nation where the work is done or where the contract says.

Christmas and New Year are the same in every nation apart from 2 January, but the number of working days they remove changes from year to year. In 2026, 2027 and 2028 the days between the Christmas holidays and New Year leave only three working days, a figure that the monthly table above already reflects for December.