expression, noun
spring day; day in spring
Refers to a day during the spring season, often with a poetic or gentle nuance.
春の日には公園を散歩するのが好きです。
I like to take a walk in the park on a spring day.
expression, noun
spring sun; spring sunshine
Refers to the sun as experienced in spring, often implying warmth and gentleness.
春の日が窓から差し込んでいる。
The spring sun is shining through the window.