using ::localtime;
#endif
using ::strftime;
#if _LIBCPP_STD_VER > 14 && defined(_LIBCPP_HAS_C11_FEATURES)
#if _LIBCPP_STD_VER > 14 && defined(_LIBCPP_HAS_C11_FEATURES) && !defined(__FreeBSD__)
using ::timespec_get;