time frame vs timetable

time frame

noun
  • The period of time during which something is expected to occur, or does occur. 

timetable

noun
  • a tabular schedule of events with the times at which they occur, especially times of arrivals and departures 

  • A schedule of arrivals and departures published in book or booklet form, or as a pamphlet, and available to travellers, either free or for a charge. 

verb
  • To arrange a specific time for (an event, a class, etc). 

How often have the words time frame and timetable occurred in a corpus of books? (source: Google Ngram Viewer )