Daylight savings stuff and flipping servers to the correct timezone offsets. This helps with adjusted date/time stamps on each server. We have users all over the place (timezones) and the server only has a single native time. We have to be able to adjust things as needed, based on the person and their stored settings. We have to do this process, twice a year when the daylight savings things happen. Going through the whole server list and making sure all is well and good on each box.