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

This is one of many errors that LanguageTool can detect. Visit the LanguageTool homepage to use it online or download it for free.

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.
Pattern: Show XML · Show in Rule Editor
Check the following text against just this rule:

ID: INVALID_DATE [1]
Version: 6.4-SNAPSHOT (2024-03-27 22:33:08 +0100)