about time vs then and there

about time

adv
  • Close to the right time. 

  • Far past the desired time. 

  • Used other than figuratively or idiomatically: see about, time. 

then and there

adv
  • Right at that moment in time and on the spot; immediately. 

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