First Day Of Spring 2025 Uk. The spring equinox begins on march 20, which is the first day of astronomical spring. The spring equinox marks nature's first day of spring.

Everything you need to know about the spring equinox 2025, including when it is, what it is and how it affects our planet. The clocks change on the last sunday of march each year in the uk, moving forward by one hour to mark the beginning of.