First Day Of Spring 2024 Uk Time. In 2024, the official first day of spring is tuesday, march 19. On the first day of spring, the length of day and night is about the same, lasting around 12 hours each.

The exact time at which the equinox takes place will change ever so slightly depending on your location in the uk,. The first day of spring happens on the spring equinox, which marks the astronomical beginning of spring.