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Months equal to May 2011

The month May 2011 has 31 days and starts on a Sunday. May 2011 has 5 Sundays, 5 Mondays, 5 Tuesdays.

Months which have the same number of days and starting weekday as May 2011
YearMonthCompared to May 2011Since last
2001July9 years, 10 months before
2002December8 years, 5 months before+ 17 months
2004August6 years, 9 months before+ 20 months
2005May6 years before+ 9 months
2006January5 years, 4 months before+ 8 months
2006October4 years, 7 months before+ 9 months
2007July3 years, 10 months before+ 9 months
2009March2 years, 2 months before+ 20 months
2010August9 months before+ 17 months
2011Mayselected month+ 9 months
2012January8 months after+ 8 months
2012July14 months after+ 6 months
2013December2 years, 7 months after+ 17 months
2015March3 years, 10 months after+ 15 months
2016May5 years after+ 14 months
2017January5 years, 8 months after+ 8 months
2017October6 years, 5 months after+ 9 months
2018July7 years, 2 months after+ 9 months
2019December8 years, 7 months after+ 17 months
2020March8 years, 10 months after+ 3 months
2021August10 years, 3 months after+ 17 months
Between years 2001 and 2021 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.