Test simple/test-timers-first-fire.js occasionally fails on Windows, because timers fire early. I have seen the timer in the test fire up to 15ms early.

This was supposed to be fixed for the most part by joyent/libuv@6ced8c2 and for small rounding errors by #7211.

When I opened the original PR against libuv (joyent/libuv#1165) it did fix the issue, but I guess that by the time it was accepted and finally merged into node (c5f5d4c) something else must have changed that still causes timers to fire early.