daytime vs smokefall

daytime

noun
  • The time of daylight; the time between sunrise and sunset. 

adj
  • Happening during the day. 

  • Pertaining to daytime; appropriate to the day. 

smokefall

noun
  • The close of the day before nightfall, when fog comes. 

  • An artificial waterfall of smoke for shows. 

  • The soot fallout from a cloud of smoke. 

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