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Months equal to May 1981

The month May 1981 has 31 days and starts on a Friday. May 1981 has 5 Fridays, 5 Saturdays, 5 Sundays.

Months which have the same number of days and starting weekday as May 1981
YearMonthCompared to May 1981Since last
1971January10 years, 4 months before
1971October9 years, 7 months before+ 9 months
1972December8 years, 5 months before+ 14 months
1974March7 years, 2 months before+ 15 months
1975August5 years, 9 months before+ 17 months
1976October4 years, 7 months before+ 14 months
1977July3 years, 10 months before+ 9 months
1978December2 years, 5 months before+ 17 months
1980August9 months before+ 20 months
1981Mayselected month+ 9 months
1982January8 months after+ 8 months
1982October17 months after+ 9 months
1983July2 years, 2 months after+ 9 months
1985March3 years, 10 months after+ 20 months
1986August5 years, 3 months after+ 17 months
1987May6 years after+ 9 months
1988January6 years, 8 months after+ 8 months
1988July7 years, 2 months after+ 6 months
1989December8 years, 7 months after+ 17 months
1991March9 years, 10 months after+ 15 months
Between years 1971 and 1991 this occurs 20 times. Note that holidays seldom match exactly. Selected month is highlighted.

Which Years Have the Same Calendar?

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Which Months Have the Same Calendar?

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When Does a Date Fall on a Certain Weekday?

Do you feel dates like Friday the 13th occur often? This calculator tells you exactly when.

About repeating months

A year has 7 months containing 31 days, 4 months containing 30 days and the final month has either 28 or 29 days. All weekdays occur four times.

This means that:

  • 31-day months repeat on average once every year.
  • 30-day months repeat on average four times every 7 years.
  • 29-day months repeat on average once every 28 years.
  • 28-day months repeat on average 3 times every 28 years.