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Years with Same Calendar as 1660 – Extended Range

The year 1660 had 366 days and started on a Huwebes (Philippines, Gregorian calendar).

This country introduced the modern Gregorian calendar in year 1582, 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 1660
YearCompared to year 1660Since last
1120540 years before 
1148512 years before+ 28 years
1176484 years before+ 28 years
1204456 years before+ 28 years
1232428 years before+ 28 years
1260400 years before+ 28 years
1288372 years before+ 28 years
1316344 years before+ 28 years
1344316 years before+ 28 years
1372288 years before+ 28 years
1400260 years before+ 28 years
1428232 years before+ 28 years
1456204 years before+ 28 years
1484176 years before+ 28 years
1512148 years before+ 28 years
1540120 years before+ 28 years
156892 years before+ 28 years
Philippines adopted today's Gregorian calendar in 1582. All previous years are based on the Julian calendar.
160456 years before+ 36 years
163228 years before+ 28 years
1660selected year+ 28 years
168828 years after+ 28 years
172868 years after+ 40 years
175696 years after+ 28 years
1784124 years after+ 28 years
1824164 years after+ 40 years
1852192 years after+ 28 years
1880220 years after+ 28 years
1920260 years after+ 40 years
1948288 years after+ 28 years
1976316 years after+ 28 years
2004344 years after+ 28 years
2032372 years after+ 28 years
2060400 years after+ 28 years
2088428 years after+ 28 years
33 years share the calendar of year 1660 in the 1000-year time span from 1100 to 2099.
Note that holidays will not match exactly. Selected year is highlighted.

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