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Years with Same Calendar as 1643

The year 1643 had 365 days and started on a Thursday (New Caledonia, 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 1643
YearCompared to year 1643Since last
154598 years before 
155192 years before+ 6 years
156281 years before+ 11 years
157370 years before+ 11 years
157964 years before+ 6 years
New Caledonia adopted today's Gregorian calendar in 1582. All previous years are based on the Julian calendar.
158756 years before+ 8 years
159845 years before+ 11 years
160934 years before+ 11 years
161528 years before+ 6 years
162617 years before+ 11 years
16376 years before+ 11 years
1643selected year+ 6 years
165411 years after+ 11 years
166522 years after+ 11 years
167128 years after+ 6 years
168239 years after+ 11 years
169350 years after+ 11 years
169956 years after+ 6 years
170562 years after+ 6 years
171168 years after+ 6 years
172279 years after+ 11 years
173390 years after+ 11 years
173996 years after+ 6 years
22 years share the calendar of year 1643 in the 200-year time span from 1543 to 1742.
Note that holidays will not match exactly. Selected year is highlighted.

Extend to 1100 – 2099

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