Earliness

(n.) The state of being early or forward; promptness.

Thesaurus Entries

anachronism, antecedence, antecedency, antedate, antedating, anteriority, anticipation, earlier state, historical error, lateness, metachronism, misdate, misdating, mistiming, parachronism, past time, postdating, precedence, precedency, precession, predating, preexistence, priority, prochronism, prolepsis, status quo ante, tardiness, unpunctuality