Daylight savings time is a great example of the Division Technique, one of five in the innovation method called SIT, short for Systematic Inventive Thinking. Division works by taking a component of a product or the product itself, then dividing it physically or functionally and rearranging back into the system.
Daylight savings time is the result of taking the standard day, dividing it and shifting it to "appear" an hour off from standard time. It's a great idea except for one problem - the benefit of this innovation is no longer realized. Daylight savings served a purpose early in its history, but is obsolete today.