If you think Microsoft's time bug is funny, here is a real-space time zone situation I find even funnier. At the South Pole, day and night each last for six months; sunrise is at the September equinox, sunset at the March equinox, and the time of day in any zone is meaningless. However, the South Pole uses daylight saving time from the first Sunday in October to the third Sunday in March! The reason they do this is because they want to stay on the same time as McMurdo Sound, which uses DST, and the reason McMurdo uses DST is because they want to be on the same time as New Zealand, which uses DST (NZDST=GMT+13:00) on the abovementioned dates. Now that's funny!