Synonyms of 'duration'

abidingness, age, antiquity, changelessness, chronology, constancy, continuance, continuation, continuity, durableness, endurance, fixedness, hardening, immobility, invariableness, inveteracy, lastingness, longevity, maintenance, period, permanence, permanency, perpetuity, run, space, space-time, span, spell, stability, standing, survival, tense, tenure, term, tide, time, torpor, while