4 ms·

30 days hath September, April, June and November

• mansr 12y ago
  That's pretty useless as a mnemonic. "30 days hath September, August, March and December" fits the pattern equally well.
  • webhat 12y ago
    Not if you remember the whole rhyme: Thirty days have September, April, June, and November. All the rest have 31, Except February alone, And that has 28 days clear, And 29 in a leap year.
    • mansr 12y ago
      My substitution works without contradictions there too.
• chrisbennet 12y ago
  This is my version: "30 days has September, all the rest I can't remember."