February is the only month whose length moves. In an ordinary year it runs to 28 days and in a leap year to 29, and 2027 gives it 28. The rule is older than it looks: a year divisible by four gains a day unless it is also divisible by 100 and not by 400, which is why 1900 was an ordinary year and 2000 was not.
Leave taken in February 2027 has to be leave in the proper sense, since there is no holiday to build it around anywhere in the country. Families are largely tied to the half term week, so accommodation for those seven days fills months ahead while the weeks either side of it stand half empty.
The move from February into March brings meteorological spring on the 1st, St David's Day on the same date, and a month that carries both the equinox and the start of British Summer Time. February 2027 hands over the last genuinely wintry weeks to the month where the season visibly turns.