The value returned by POSIX time is commonly said to be "POSIX time" or "UNIX time". This names a time system other than UTC. In my experience, programmers don'

The value returned by POSIX time is commonly said to be "POSIX time" or "UNIX time". This names a time system other than UTC. In my experience, programmers don't seem to confuse these two systems. I have seen good programmers be surprised by the fact that POSIX time goes backwards in the event of leap seconds, as I was when I learned it. I think it would have at least as much punch if you edited your "falsehood 2" to be about UNIX time instead of UTC. As a bonus, you would also be correct ;)