An established division of time refers to a specific way of dividing up time that has become widely accepted and recognized. Synonyms for this term might include "time frame," "timeline," "schedule," or "time allocation." Other possibilities might include "chronology," "date range," "time period," "calendar," or "time continuum." Whatever term you use, it is important to remember that an established division of time is essential for organizing our lives and ensuring that we can effectively and efficiently accomplish our goals. By using synonyms for this concept, we can expand our vocabulary and better communicate our understanding of time and its division.