distinct vs plain as day

distinct

adj
  • Capable of being perceived very clearly. 

  • Separate in place; not conjunct or united; with from. 

  • Different from one another (with the preferable adposition being "from"). 

  • Noticeably different from others; distinctive. 

plain as day

adj
  • Very clear and evident. 

How often have the words distinct and plain as day occurred in a corpus of books? (source: Google Ngram Viewer )