The 190-day school year: how pupil days are counted
Reviewed 2026-09-08 · TermMinder
Behind every English school calendar sits a single number: 190. It explains why a council that wants a longer autumn break has to give up summer days, why councils that experiment with their dates still end up with years that look alike, and where INSET days come from. Here is how the count actually works.
The legal rule: 380 sessions
The requirement comes from regulation 3 of the Education (School Day and School Year) (England) Regulations 1999. Its wording is simple: "At least 380 sessions shall be held at a school during any school year."
The counting unit is the session, not the day. A school day normally consists of two sessions, a morning and an afternoon, divided by the lunch break. Divide 380 sessions by two and you get the figure every parent recognises: 190 days on which the school must be open to pupils. The same regulation adds that "nothing in this paragraph shall require a nursery class to meet for that number of sessions", so nursery classes are outside the count.
Councils put the rule at the top of their term dates pages. Leicestershire opens with "the law requires local authority schools to have 190 school days", before adding the familiar caveat that "some schools follow a different term-time pattern".
Where the other five days go
Teachers work more than 190 days. The School Teachers' Pay and Conditions Document, at paragraph 51.2 of the 2025 edition, says a full-time teacher "must be available for work for 195 days", of which "190 days must be days on which the teacher may be required to teach pupils" and "5 days must be days on which the teacher may only be required to perform other duties". Those five are the days parents know as INSET days, and the document leaves it to the employer or the headteacher to say when they fall.
Surrey states the whole sum in one sentence on its term dates page: "The school year will still have 195 days, including 5 INSET days." One hundred and ninety days with pupils, five without, 195 in total. When a school moves an INSET day, the pupil days are not lost; they are rearranged so that the count still comes out at 190.
Why the number disciplines every calendar
For local-authority-maintained schools in England, the 380-session rule means 190 pupil days; academies and other school types can have different governing arrangements, so their own published calendar still matters. That fixed requirement explains why maintained-school experiments stay within narrow limits.
Surrey is the clearest current example. When it introduced a two-week October half term from 2026, it could not simply add five holiday days. Its page explains that "five days will be taken from the summer holiday in July 2027", pushing the summer term's end to Wednesday 28 July. The total was fixed by law, so the only freedom was in the distribution.
The same arithmetic explains why the shape of the year is so similar from one council to the next, even when the labels differ. Kent publishes its year as six numbered terms, from Term 1 starting on 1 September 2026 to Term 6 ending on 21 July 2027, where Leicestershire describes three terms with a half-term break in each. Both are 190 pupil days arranged into six blocks with a break between each; only the names differ.
What the count means for parents
For families, the practical value of understanding the count is modest but real. It tells you that term dates are not arbitrary: a council cannot extend a holiday without paying for it elsewhere, and a school advertising a longer break has made a trade, not found free time.
It also tells you what to check when your school's dates do not match the council's. Academies, voluntary aided and foundation schools "may have different term dates", as Surrey's page warns, and Leicestershire's caveat covers any school that follows "a different term-time pattern". If the dates you have been given seem to add up to less, ask the school office which days are INSET days and which are holidays; the school can explain how its calendar meets its own obligations.
When you use TermMinder, read the verification and scope information beside the dates, then follow the linked official source. The finder can take you to an available authority or school result, and the INSET guide explains why a council table cannot provide every pupil-free day.