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Rule "Impossible dates (April 31st, etc.)"

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

Description: Impossible dates (April 31st, etc.)
Message: There are only 28 days in February, or 29 days during leap years. Are you sure this date is correct?
Category: Semantics (ID: SEMANTICS)
Incorrect sentences
that this rule can detect:
  • She will join us on 31/02/2022.
  • She will join us on 30.2.2022.
Correct sentences
for comparison:
  • In March 37, Tiberius died and Agrippina's remaining son Caligula succeeded as emperor.
  • On 2 September 31 BC the naval forces of Octavian, led by Marcus Vipsanius Agrippa, met those of Antony and Cleopatra at the Battle of Actium.
  • In September 31 B.C.E. the naval forces of Octavian, led by Marcus Vipsanius Agrippa, met those of Antony and Cleopatra at the Battle of Actium.
  • Sold 25 Calls ENE April 35.0 @ $1.45 opening order Have a great weekend.
  • Be that as it may, she expired on 17 October 33.
  • It has a population growth rate of 0.925% (2010 est.), with a birth rate of 17.81/1000 population, death rate of 9.35/1000, and net migration rate of -2.13 migrant(s)/1,000 population.
Pattern: Show XML · Show in Rule Editor
Check the following text against just this rule:

ID: TWELFTH_OF_NEVER [12]
Version: 6.5-SNAPSHOT (2024-06-18 22:33:08 +0200)