1. Should time() return an implementation defined time representation or should it return elapsed seconds since midnight January 1 1970 GMT? The current POSIX draft already states that it returns the latter; do we want to change this? If it does not return elapsed seconds, should the name "time" (or the type name "time_t") be changed (so as to noisily break existing code, rather than quietly breaking existing code?) X3J11 also has "time" and "time_t", although since they're not defining an OS standard they do not require "time_t" to be an integral type representing seconds since the epoch.