“Corresponding months” are those that start on the same day of the week. September and December correspond in both common and leap years. Other corresponding months vary. December always ends on the same day as April, and certain months have specific numbers of days.
The term “corresponding months” refers to months that start on the same day of the week within a given year. The only corresponding months in both common and leap years are September and December. In 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.
Learn more about calendar days:
December always ends on the same day of the week that April of that year ended.
In years where there is a Friday the 13th in September, there will always be one in December as well.
Seven months have a duration of 31 days. Fours last 30 days, and February lasts 28 days in common years and 29 days in leap years.
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