Spring begins twice in March, depending on which definition you take. The Met Office starts it on the 1st for the sake of neat monthly statistics; the equinox, which is what most calendars print, comes around the 20th. Between the two, daffodils fill the verges, lambing gets under way on the uplands, and the evenings gain around four minutes a day.
Leave planned in March 2027 is usually leave with a purpose: using up an annual allowance that resets with the new holiday year, or bridging into the Easter break where Easter falls early enough to reach back into the month. Outside Northern Ireland there is no public holiday to build a long weekend around.
March 2027 closes with the clocks already forward and the evenings suddenly long enough to do something with. April follows carrying the tax year turnover on the 6th and, in most years, the Easter break with two bank holidays inside a single week.