List of Mnemonics - Chronology

Chronology

• How to set your clock to accommodate the shift to and from daylight saving time: "Spring forward. Fall back" or "Spring ahead, Fall behind."

• The rhyme Thirty days hath September is commonly used as a mnemonic for the number of days in the months of the year.

Thirty days hath September,

April, June, and November;

All the rest have thirty-one,

Save February, with twenty-eight days clear,

And twenty-nine each leap year.