Most of Africa, Asia and South America can't be bothered with Daylight Savings Time.

Most of Europe switches to DST on March 25 this year.

America, however, went over to DST on Sunday March 11th as a result of passing a law two years ago to extend Daylight Saving Time by an extra month.

The reason? In theory, it was so the country could cut back on its use of fossil fuels and enjoy a little more sunshine.

In practice, however, it's a bit of a nightmare as corporate America rushes to re-set system clocks in anything from computers to video recorders.

As far as computing technology is concerned, both Microsoft and Apple are creating software patches to get around this problem.

And just how much energy is this extended DST going to save? The US Energy Department calculates electricity savings at four-tenths of one percent for each extra day of Daylight Savings Time.

But those savings, they say, will add up to something more significant in the long run.