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Months equal to September 1917

The month September 1917 has 30 days and starts on a Saturday. September 1917 has 5 Saturdays, 5 Sundays.

Months which have the same number of days and starting weekday as September 1917
YearMonthCompared to September 1917Since last
1907June10 years, 3 months before
1911April6 years, 5 months before+ 3 years, 10 months
1912June5 years, 3 months before+ 14 months
1913November3 years, 10 months before+ 17 months
1916April17 months before+ 2 years, 5 months
1917Septemberselected month+ 17 months
1918June9 months after+ 9 months
1919November2 years, 2 months after+ 17 months
1922April4 years, 7 months after+ 2 years, 5 months
1923September6 years after+ 17 months
1924November7 years, 2 months after+ 14 months
Between years 1907 and 1927 this occurs 11 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.