The most important difference between Windows 7 and Windows XP is that the operating system’s user interface started turning its back to the forest and its front to the user. One interesting example is shown in the figure below. Windows, besides automatically changing the clocks, also uses the speech channel to remind you that daylight saving time will end at 4:00 at night and the hour hand will move back one hour.
And the standard question: so how is it on the Mac? And how does it work there on Linux?