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Years with Same Calendar as 1266

The year 1266 had 365 days and started on a Friday (United States, Julian calendar).

This country was still using the Julian calendar in 1266. 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.

Years with same starting weekday and equal number of days to 1266
YearCompared to year 1266Since last
117195 years before 
118284 years before+ 11 years
119373 years before+ 11 years
119967 years before+ 6 years
121056 years before+ 11 years
122145 years before+ 11 years
122739 years before+ 6 years
123828 years before+ 11 years
124917 years before+ 11 years
125511 years before+ 6 years
1266selected year+ 11 years
127711 years after+ 11 years
128317 years after+ 6 years
129428 years after+ 11 years
130539 years after+ 11 years
131145 years after+ 6 years
132256 years after+ 11 years
133367 years after+ 11 years
133973 years after+ 6 years
135084 years after+ 11 years
136195 years after+ 11 years
20 years share the calendar of year 1266 in the 200-year time span from 1166 to 1365.
Note that holidays will not match exactly. Selected year is highlighted.

Extend to 700 – 1699


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.