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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:	February only has 28 days, or 29 days in leap years.
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 Feb 30, 2014.
Correct sentences for comparison:	It happened on Feb 28, 2014.
ID:	INVALID_DATE [2]
Version:	6.8-SNAPSHOT (2025-10-25 22:33:08 +0200)