earlier vs in time

earlier

adv
  • previously; before now; sooner 

adj
  • occurring previously 

in time

prep
  • Sufficiently early. 

  • As time passes. 

  • In rhythm. 

  • At or before the time assigned. 

  • At the same rhythm as. 

  • In the correct tempo. 

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