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Months equal to December 2019

The month December 2019 has 31 days and starts on a Sunday. December 2019 has 5 Sundays, 5 Mondays, 5 Tuesdays.

Months which have the same number of days and starting weekday as December 2019
YearMonthCompared to December 2019Since last
2009March10 years, 9 months before
2010August9 years, 4 months before+ 17 months
2011May8 years, 7 months before+ 9 months
2012January7 years, 11 months before+ 8 months
2012July7 years, 5 months before+ 6 months
2013December6 years before+ 17 months
2015March4 years, 9 months before+ 15 months
2016May3 years, 7 months before+ 14 months
2017January2 years, 11 months before+ 8 months
2017October2 years, 2 months before+ 9 months
2018July17 months before+ 9 months
2019Decemberselected month+ 17 months
2020March3 months after+ 3 months
2021August20 months after+ 17 months
2022May2 years, 5 months after+ 9 months
2023January3 years, 1 months after+ 8 months
2023October3 years, 10 months after+ 9 months
2024December5 years after+ 14 months
2026March6 years, 3 months after+ 15 months
2027August7 years, 8 months after+ 17 months
2028October8 years, 10 months after+ 14 months
2029July9 years, 7 months after+ 9 months
Between years 2009 and 2029 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.