Thirty days hath September

Thirty days hath September is a traditional English mnemonic rhyme, of which many variants are commonly used in English-speaking countries to remember the lengths of the months in the Julian and Gregorian calendars. See also Knuckle Mnemonic.

Here is one version of the rhyme attributed to Mother Goose:

单词	Thirty days hath September
释义	Thirty days hath September 英语百科 Thirty days hath September Thirty days hath September is a traditional English mnemonic rhyme, of which many variants are commonly used in English-speaking countries to remember the lengths of the months in the Julian and Gregorian calendars. See also Knuckle Mnemonic. Here is one version of the rhyme attributed to Mother Goose:
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