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Months equal to August 2009

The month August 2009 has 31 days and starts on a Saturday. August 2009 has 5 Saturdays, 5 Sundays, 5 Mondays.

Months which have the same number of days and starting weekday as August 2009
YearMonthCompared to August 2009Since last
1999May10 years, 3 months before
2000January9 years, 7 months before+ 8 months
2000July9 years, 1 months before+ 6 months
2001December7 years, 8 months before+ 17 months
2003March6 years, 5 months before+ 15 months
2004May5 years, 3 months before+ 14 months
2005January4 years, 7 months before+ 8 months
2005October3 years, 10 months before+ 9 months
2006July3 years, 1 months before+ 9 months
2007December20 months before+ 17 months
2008March17 months before+ 3 months
2009Augustselected month+ 17 months
2010May9 months after+ 9 months
2011January17 months after+ 8 months
2011October2 years, 2 months after+ 9 months
2012December3 years, 4 months after+ 14 months
2014March4 years, 7 months after+ 15 months
2015August6 years after+ 17 months
2016October7 years, 2 months after+ 14 months
2017July7 years, 11 months after+ 9 months
2018December9 years, 4 months after+ 17 months
Between years 1999 and 2019 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.