Since people are going nuts online about how perfect February 2026 is... here you go:
~ $ cal feb 2026
February 2026
Su Mo Tu We Th Fr Sa
1 2 3 4 5 6 7
8 9 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28
~ $ for x in {1900..2050}; do cal feb $x |grep -q "^ 1 " && echo $x; done
1903
1914
1920
1925
1931
1942
1948
1953
1959
1970
1976
1981
1987
1998
2004
2009
2015
2026
2032
2037
2043