An extra bank holiday to mark the coronation of King Charles III next year will clash with the first day of key stage 2 SATs tests.
The national day off will fall on Monday 8 May, two days after his majesty is coronated in a televised ceremony at Westminster Abbey.
It comes after election officials warned that a Friday bank holiday could disrupt the vote count for local elections in England on May 4.
But the new date is likely to cause disruption to primary schools, some of which could also be closed while being used as polling stations during the elections.
Year 6 pupils are expected to sit tests between May 8 and May 11, with a test on English grammar, punctuation and spelling currently scheduled on the same day as the bank holiday.
