Ye' old general discussion board. Basically, for everything that isn't covered elsewhere. Come here to shoot the breeze, shoot your mouth off, or whatever suits your fancy. This forum is not for asking programming related questions.
Actually, this is a misconception, UNIX timestamps are just a method of measuring time, number of seconds since 01.01.1970. Times before that date are represented by negative numbers. So 1970 is a problem if you only use positive numbers, and 2038 is a problem only if you use signed 32 bit values. 64 bit timestamps, on the other hand are wide enough, so one must choose a modern compiler, capable of handling int64, for the time machine.