To what season does the speaker compare his time of life in sonnet boi by john Milton?

John Milton compares his time of life to the spring season in his Sonnet 7 based on the poem. John Milton only described his time of life as a season in this Sonnet and this sonnet is about how soon the time of youth is. He described the time of life in the "But my late spring no bud or blossom shew'th" line in the sonnet which explained no vital result came in his late youth.