Home   Calendar   Repeating months

Months equal to May 1987

The month May 1987 has 31 days and starts on a Friday. May 1987 has 5 Fridays, 5 Saturdays, 5 Sundays.

Months which have the same number of days and starting weekday as May 1987
YearMonthCompared to May 1987Since last
1977July9 years, 10 months before
1978December8 years, 5 months before+ 17 months
1980August6 years, 9 months before+ 20 months
1981May6 years before+ 9 months
1982January5 years, 4 months before+ 8 months
1982October4 years, 7 months before+ 9 months
1983July3 years, 10 months before+ 9 months
1985March2 years, 2 months before+ 20 months
1986August9 months before+ 17 months
1987Mayselected month+ 9 months
1988January8 months after+ 8 months
1988July14 months after+ 6 months
1989December2 years, 7 months after+ 17 months
1991March3 years, 10 months after+ 15 months
1992May5 years after+ 14 months
1993January5 years, 8 months after+ 8 months
1993October6 years, 5 months after+ 9 months
1994July7 years, 2 months after+ 9 months
1995December8 years, 7 months after+ 17 months
1996March8 years, 10 months after+ 3 months
1997August10 years, 3 months after+ 17 months
Between years 1977 and 1997 this occurs 21 times. Note that holidays seldom match exactly. Selected month is highlighted.

Which Years Have the Same Calendar?

Reuse your yearly calendar by finding years that have the same number of days and start on the same day of the week.

Which Months Have the Same Calendar?

Find months that have the same number of days and start on the same day of the week.

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.