What is the tone of Robert Herrick's poem,"To Virgins, to Make Much of Time"?

This poem is a famous example of a type of literature referred
to as "carpe diem" literature. This is a Latin phrase meaning "seize the day." Thus, in this
poem, the speaker addresses all "virgins" or young women and urges them to marry now rather than
wait until it is too late and they have lost their "prime." Note how the first stanza builds up
this impression through the use of imagery:

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Gather ye rosebuds while ye
may,

Old Time is still a-flying;

And
this same flower that smiles today,

Tomorrow will be
dying.

In an implied metaphor, the
"virgins" or young women are compared to the "flower that smiles today" but might have withered
by tomorrow. Thus when we think about the tone of this poem we can characterise it as one of
persuasive urgency - the speaker is really trying to encourage his audience not to "tarry"
because if they do it might be too late.