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Years with Same Calendar as 1666

The year 1666 had 365 days and started on a Monday (Bahamas, Julian calendar).

This country was still using the Julian calendar in year 1666. In that calendar system, a Leap Day was added every four years, without the exceptions defined in today's Gregorian calendar. The Gregorian calendar was introduced in 1752. This affects the selection of years listed here.

Years with same starting weekday and equal number of days to 1666
YearCompared to year 1666Since last
157195 years before 
158284 years before+ 11 years
159373 years before+ 11 years
159967 years before+ 6 years
161056 years before+ 11 years
162145 years before+ 11 years
162739 years before+ 6 years
163828 years before+ 11 years
164917 years before+ 11 years
165511 years before+ 6 years
1666selected year+ 11 years
167711 years after+ 11 years
168317 years after+ 6 years
169428 years after+ 11 years
170539 years after+ 11 years
171145 years after+ 6 years
172256 years after+ 11 years
173367 years after+ 11 years
173973 years after+ 6 years
175084 years after+ 11 years
Bahamas adopted today's Gregorian calendar in 1752. All previous years are based on the Julian calendar.
175387 years after+ 3 years
175993 years after+ 6 years
21 years share the calendar of year 1666 in the 200-year time span from 1566 to 1765.
Note that holidays will not match exactly. Selected year is highlighted.

Extend to 1100 – 2099

Which Years Have the Same Calendar?

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Which Months Have the Same Calendar?

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