What years in the 21st century have 53 Sundays?

2012

First, 2019 does NOT have 53 Sundays; check out any calendar.

Second, ***ONLY 2 YEARS*** in the Twenty-First Century? No.

Third try -- By my calculation, in the Twenty-First Century the following 17 years with 53 Sundays: 2006, 2012, 2017, 2023, 2028, 2034, 2040, 2045, 2051, 2056, 2062, 2068, 2073, 2079, 2084, 2090, & 2096.

Any year beginning (i.e., 1 Jan) with a Sunday and any leap year beginning with a Saturday (not a Monday, as I earlier indicated) is a year with 53 Sundays.

In OpenOffice Calc, that is (Corrected version): =IF(OR(WEEKDAY($B5)=1;AND(INT(YEAR($B5)/4)=YEAR($B5)/4;WEEKDAY($B5)=7));1;0)

Correct me if I am wrong.