showtime

Noun showtime has 1 sense

• showtime(n = noun.time) beginning, commencement, first, get-go, kickoff, offset, outset, start, starting time - the time at which something is supposed to begin; "they got an early start"; "she knew from the get-go that he was the man for her"
has particulars: birth, incipience, incipiency, starting point, terminus a quo, threshold
is a kind of point, point in time