Business days between two dates, or the date a number of business days lands on. A thirty day deadline and thirty working days differ by nearly two weeks, and contracts that fail to say which they mean produce exactly that dispute.
Also called: working days calculator, business day counter.
64 business days between 2026-01-01 and 2026-03-31, out of 90 calendar days. 26 days are non-working on a five day week. Enter a number of business days to add and the page will give the date it lands on.
The range is walked day by day, skipping the rest days of the pattern you choose and deducting holidays. The working week is an input because five days is a regional convention: much of the Middle East works Sunday to Thursday and a six day week is common across South Asia. Adding business days works the same way in reverse, stepping forward and skipping rest days, which is how a notice period or a settlement window actually counts.
a working day is not a calendar day, and contracts that mix the two produce deadlines nearly two weeks apartEach of these is asserted on every build. If a change to the engine ever moved one of these answers, the build would fail before the page could print it.
Business days64
90 days inclusive, of which 26 fall at weekends
Open this exampleBusiness days1
boundary: the gap that contracts silently disagree about
Open this exampleFormula version 1.0.0 · definition 1.0.0 · United States · Report a problem with this calculator