Hooray, daylight saving has started again. The idea of having "more daylight hours" is great - but can be achieved without forcing everyone to change their clocks. The switch to and from DST stuffs me up for a few days :( Oh well. There are supposed economic benefits, e.g. people can stay up later and buy things. And it provides us with more daylight hours for recreation. But if that's the case, then why move the clocks back just as winter approaches? The days are getting shorter, so why take another hour of daylight from the end? Here's an interesting article, about the change from summer time back to "normal" time in the US last week, which argues that maybe we have this daylight savings thing backwards. "We should turn the clocks forward, not back" <http://www.ft.com/cms/s/0/ccaaef30-8181-11dc-9b6f-0000779fd2ac.html> Some quotes ... "[W]e experience more darkness than necessary. An adult with normal habits who lives far from the equator will usually be asleep during several hundred daylight hours, almost all of these in the morning. Midday is not really the middle of anyone‚Äôs day. It is not even the middle of most people's working day." "[W]hy do our days make such inefficient use of daylight? We get more pleasure out of sleeping late and going to bed late than from the opposite and perhaps centuries of this bias have accumulated. Rich people always lived later in the day than poor people: they needed to wait till their shaving water had boiled and they could afford the light and heat needed to play cards into the night. Only in modern financial markets did many rich people feel obliged to begin work in the dark." "Enforced time-shifting is an intrusive yet effective piece of economic and social engineering. Next week, even people free to rise when they choose, such as retirees and newspaper columnists, will get up later and go to bed later. Who would believe they could be induced to do this by government decree?" Here's a thought: if daylight saving is really about making more profits for businesses, and given that inflationary pressures are stoked by booming business, perhaps we could sacrifice daylight saving to avoid another interest rate rise next month? Anyway, that's economics. Here are some scientific and philosophical views of time. A warning though - they might mess with your head :) 1. "Newsflash: Time May Not Exist" <http://discovermagazine.com/2007/jun/in-no-time?> "The problem, in brief, is that time may not exist at the most funda- mental level of physical reality. If so, then what is time? And why is it so obviously and tyrannically omnipresent in our own experience?" 2. "How long is a split-second? It's all relative" <http://space.newscientist.com/article.ns?id=dn11080> "How does the mind tell the time when it is too brief for us to register? Researchers think they have discovered the brain's stopwatch and, along with it, a clue to conditions like dyslexia." 3. "No paradox for time travellers" <http://www.newscientist.com/article.ns?id=dn7535> "Some solutions to the equations of Einstein's general theory of relativity lead to situations in which space-time curves back on itself, theoretically allowing travellers to loop back in time and meet younger versions of themselves." 4. "Everything you wanted to know about Time Travel" <http://www.lifesci.sussex.ac.uk/home/John_Gribbin/timetrav.htm> 5. Wikipedia articles * "Time" <http://en.wikipedia.org/wiki/Time> * "Philosophy of space and time" <http://en.wikipedia.org/wiki/Philosophy_of_space_and_time> * The End of Time <http://en.wikipedia.org/wiki/The_End_of_Time> "In The End of Time: The Next Revolution in Physics, published in 1999, Julian Barbour denies that time exists as anything but an illusion." * "Time Travel" <http://en.wikipedia.org/wiki/Time_travel> Includes examples of paradoxes related to time travel.