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Years with Same Calendar as 1815

The year 1815 had 365 days and started on a Sunday (Tonga, Gregorian calendar).

This country introduced the modern Gregorian calendar in year 1752, so previous years are based on the Julian calendar. In that calendar system, a Leap Day was added every four years, without the exceptions defined in today's Gregorian calendar. This affects the selection of years listed here.

Years with same starting weekday and equal number of days to 1815
YearCompared to year 1815Since last
172194 years before 
172788 years before+ 6 years
173877 years before+ 11 years
174966 years before+ 11 years
Tonga adopted today's Gregorian calendar in 1752. All previous years are based on the Julian calendar.
175857 years before+ 9 years
176946 years before+ 11 years
177540 years before+ 6 years
178629 years before+ 11 years
179718 years before+ 11 years
18096 years before+ 12 years
1815selected year+ 6 years
182611 years after+ 11 years
183722 years after+ 11 years
184328 years after+ 6 years
185439 years after+ 11 years
186550 years after+ 11 years
187156 years after+ 6 years
188267 years after+ 11 years
189378 years after+ 11 years
189984 years after+ 6 years
190590 years after+ 6 years
191196 years after+ 6 years
21 years share the calendar of year 1815 in the 200-year time span from 1715 to 1914.
Note that holidays will not match exactly. Selected year is highlighted.

Extend to 1300 – 2299

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.