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Months equal to May 2021

The month May 2021 has 31 days and starts on a Saturday. May 2021 has 5 Saturdays, 5 Sundays, 5 Mondays.

Months which have the same number of days and starting weekday as May 2021
YearMonthCompared to May 2021Since last
2011January10 years, 4 months before
2011October9 years, 7 months before+ 9 months
2012December8 years, 5 months before+ 14 months
2014March7 years, 2 months before+ 15 months
2015August5 years, 9 months before+ 17 months
2016October4 years, 7 months before+ 14 months
2017July3 years, 10 months before+ 9 months
2018December2 years, 5 months before+ 17 months
2020August9 months before+ 20 months
2021Mayselected month+ 9 months
2022January8 months after+ 8 months
2022October17 months after+ 9 months
2023July2 years, 2 months after+ 9 months
2025March3 years, 10 months after+ 20 months
2026August5 years, 3 months after+ 17 months
2027May6 years after+ 9 months
2028January6 years, 8 months after+ 8 months
2028July7 years, 2 months after+ 6 months
2029December8 years, 7 months after+ 17 months
2031March9 years, 10 months after+ 15 months
Between years 2011 and 2031 this occurs 20 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.