Years with Same Calendar as 1639

Year: Country:

The year 1639 had 365 days and started on a Saturday (Guinea-Bissau, 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 1639
Year	Compared to year 1639	Since last
1541	98 years before
1547	92 years before	+ 6 years
1558	81 years before	+ 11 years
1569	70 years before	+ 11 years
1575	64 years before	+ 6 years
Guinea-Bissau adopted today's Gregorian calendar in 1582. All previous years are based on the Julian calendar.
1583	56 years before	+ 8 years
1594	45 years before	+ 11 years
1605	34 years before	+ 11 years
1611	28 years before	+ 6 years
1622	17 years before	+ 11 years
1633	6 years before	+ 11 years
1639	selected year	+ 6 years
1650	11 years after	+ 11 years
1661	22 years after	+ 11 years
1667	28 years after	+ 6 years
1678	39 years after	+ 11 years
1689	50 years after	+ 11 years
1695	56 years after	+ 6 years
1701	62 years after	+ 6 years
1707	68 years after	+ 6 years
1718	79 years after	+ 11 years
1729	90 years after	+ 11 years
1735	96 years after	+ 6 years
22 years share the calendar of year 1639 in the 200-year time span from 1539 to 1738. Note that holidays will not match exactly. Selected year is highlighted.

Extend to 1100 – 2099

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