modern-day vs up-to-date

modern-day

adj
  • Current; of the present. 

  • Designating a present-day version of someone or something in history. 

up-to-date

adj
  • Current; recent; the latest. 

  • Informed about the latest news or developments; abreast. 

How often have the words modern-day and up-to-date occurred in a corpus of books? (source: Google Ngram Viewer )