[PATCH 1/1] offset: optimized calculation of year from unix timestamp

[Paul Eggert]

Thanks for contributing that, and welcome to the hardy and obscure band 
of timestamp code fixers. For a previous proposal along similar lines, 
which also fixes some integer overflow bugs, see:

https://sourceware.org/pipermail/libc-alpha/2025-January/163488.html

This is part of a larger set of proposed fixes which I hope some day to 
pry free enough time to incorporate. See the thread starting here:

https://sourceware.org/pipermail/libc-alpha/2025-January/163444.html