It was certainly written before its first publication in 1609 - and it was probably written after sonnets in this format had become a vogue in English literature (from around 1590). Many commentators then go on to suggest that there is insufficient evidence to arrive at a more precise dating.
However, the evidence for biography in Shakespeare's Sonnets points to a probable composition date for this poem of around 1592. Read more at the link below.
sonnet 18
i
Iambic pentameter.
sonnet
"Shall I compare thee to a summer's day?" is a famous sonnet written by William Shakespeare, known for its vivid imagery and themes of love and beauty.
In Sonnet XVIII, the "eye of heaven" refers to the sun. The speaker compares the beauty of the youth to the sun's radiant and eternal nature, suggesting that the youth's beauty will also be immortalized through the power of poetry.
It makes fun of the blazon and exaggerated comparisons of beauty.
Sonnets. Sonnet XVIII, for example.
Sonnet XVIII: "Shall I compare thee to a summer's day", or Sonnet XCVI: "Let us not to the marriage of true minds admit impediments"
Sonnet XC. Sonnet XVIII. Sonnet XXXV. Sonnet CL. The Sonnets do not have names, only numbers. If you want the content of the various sonnets you will have to read them. The attached link is one place you can do this (also any copy of the Complete Works of Shakespeare)
Probably either Sonnet 18 ("Shall I compare thee to as summer's day") or Sonnet 116 ("Let me not to the marriage of true minds admit impediments")
Venus and Adonis, The Rape of Lucrece, The Phoenix and the Turtle, Sonnet XVIII. All the sonnets are known only by numbers so one could as easily say Sonnet 1, Sonnet 2, Sonnet 3 and Sonnet 4. Those are certainly four of Shakespeare's poems.