Which Months Start on the Same Day?

The term "corresponding months" refers to months that begin on the same day of the week within a particular year. The only corresponding months in both common years and leap years are September and December. During common years, January and October; February, March and November; and April and July also correspond. In a leap year, January, April and July; March and November; and February and August are corresponding months.

More about calendar days:

  • December always ends on the same day of the week on which April ended that year.

  • In years when there is a Friday the 13th during September, there will always be one in December as well.

  • Seven months have a length of 31 days. Four are 30 days long, and February is 28 days long during common years and 29 days in leap years.

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