I can't speak for Linux/FreeBSD, but NetBSD has been 64-bit time_t (all ports)[0] since 6.0, which was Oct 2012[1]. [0] https://www.netbsd.org/releases/formal-

I can't speak for Linux/FreeBSD, but NetBSD has been 64-bit time_t (all ports)[0] since 6.0, which was Oct 2012[1]. [0] https://www.netbsd.org/releases/formal-6/NetBSD-6.0.html https://www.netbsd.org/releases/formal-6/NetBSD-6.0.html [1] https://www.netbsd.org/about/history.html https://www.netbsd.org/about/history.html