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Months equal to December 2015

The month December 2015 has 31 days and starts on a Tuesday. December 2015 has 5 Tuesdays, 5 Wednesdays, 5 Thursdays.

Months which have the same number of days and starting weekday as December 2015
YearMonthCompared to December 2015Since last
2005March10 years, 9 months before
2006August9 years, 4 months before+ 17 months
2007May8 years, 7 months before+ 9 months
2008January7 years, 11 months before+ 8 months
2008July7 years, 5 months before+ 6 months
2009December6 years before+ 17 months
2011March4 years, 9 months before+ 15 months
2012May3 years, 7 months before+ 14 months
2013January2 years, 11 months before+ 8 months
2013October2 years, 2 months before+ 9 months
2014July17 months before+ 9 months
2015Decemberselected month+ 17 months
2016March3 months after+ 3 months
2017August20 months after+ 17 months
2018May2 years, 5 months after+ 9 months
2019January3 years, 1 months after+ 8 months
2019October3 years, 10 months after+ 9 months
2020December5 years after+ 14 months
2022March6 years, 3 months after+ 15 months
2023August7 years, 8 months after+ 17 months
2024October8 years, 10 months after+ 14 months
2025July9 years, 7 months after+ 9 months
Between years 2005 and 2025 this occurs 22 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.