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Rule "Invalid date, like 'February 31, 2014'"

This is one of many errors that LanguageTool can detect.

Description:	Invalid date, like 'February 31, 2014'
Message:	The month of \1 only has 30 days.
Category:	Semantics (ID: SEMANTICS)
Link:	https://languagetool.org/insights/post/date-formats/#commas-in-dates
Incorrect sentences that this rule can detect:	It happened on November 31, 2014.
Correct sentences for comparison:	It happened on November 30, 2014. Band 89, Nr. 9, 2002, S. 1531–1546, DOI: 10.3732/ajb.89.9.1531.
ID:	INVALID_DATE [1]
Version:	6.8-SNAPSHOT (2025-10-23 22:33:08 +0200)