Monday, October 6, 2014

The geodesy of daylight saving

It's that time of year again when Queenslanders have to put up with jibes on their inability to grasp the fundamentals of daylight saving. The irony is that most of these come from persons, even otherwise intelligent and generally knowledgeable persons, with an inability to grasp the basics of geodesy, or even simple geography.

The Cairns Post couldn't resist a report: Time keeps ticking for Far North as daylight saving begins which includes comments from Brett Moller which have nothing really to do with why daylight saving is not so attractive in FNQ as in more temperate zones. Brett is a lawyer.

I have repeated this link several times over the years since it was posted in 2007 but it remains the most relevant I am aware of to explain simply some of the geodetic and geographic complexities/simplicities, particularly relevant to Queensland: Daylight saving beyond the fading curtains

I wonder how many people are even aware that the 'longest day' at the solstice is neither the earliest sunrise or the latest sunset? Never mind. I'm sure they will have an opinion on daylight saving anyway!

Meanwhile I noted an unusually rare thoughtful comment from Barnaby Joyce: "Daylight Savings, a euphemism of having to give up an hour of your mornings to people who prefer afternoons. Bike riders not happy."

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