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Months equal to May 1999

The month May 1999 has 31 days and starts on a Saturday. May 1999 has 5 Saturdays, 5 Sundays, 5 Mondays.

Months which have the same number of days and starting weekday as May 1999
YearMonthCompared to May 1999Since last
1989July9 years, 10 months before
1990December8 years, 5 months before+ 17 months
1992August6 years, 9 months before+ 20 months
1993May6 years before+ 9 months
1994January5 years, 4 months before+ 8 months
1994October4 years, 7 months before+ 9 months
1995July3 years, 10 months before+ 9 months
1997March2 years, 2 months before+ 20 months
1998August9 months before+ 17 months
1999Mayselected month+ 9 months
2000January8 months after+ 8 months
2000July14 months after+ 6 months
2001December2 years, 7 months after+ 17 months
2003March3 years, 10 months after+ 15 months
2004May5 years after+ 14 months
2005January5 years, 8 months after+ 8 months
2005October6 years, 5 months after+ 9 months
2006July7 years, 2 months after+ 9 months
2007December8 years, 7 months after+ 17 months
2008March8 years, 10 months after+ 3 months
2009August10 years, 3 months after+ 17 months
Between years 1989 and 2009 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.