On Wed, 7 Jul 2021, 21:10 Steger, Matthew via Gcc-help, < gcc-help@xxxxxxxxxxx> wrote: > What version (exactly) of GCC added the "time64_t" and all TIME Related > functions (including Printing formats) allowed 64-bit time (to FIX the Year > 2038 issue with "time_t") > Those functions are not part of GCC. They are provided by the C library, not GCC. If you are using Linux, your C library is probably glibc. It is a completely separate project from GCC with its own releases. > Also did *ANY* version of GCC support 32-bit UNSIGNED time (good until > 2106) including all TIME Related fucntions (and Printing formats)? > GCC supports whatever the C library does.