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An unusual date that comes to us from the heavens. Date image via shutterstock.com

Leap day: fixing the faults in our stars

We will get an 'extra' day this year, February 29. Where do these quadrennial liberties with our calendar originate?
Tick tock, tick tock… You can’t hide from the molecular clock. www.shutterstock.com

Explainer: what is the molecular clock?

The molecular clock is helping us deepen our knowledge of evolution and completing the tree of life. But how does it actually work?
The difference between “real” time, measured by clocks, and our own sense of time can sometimes seem enormous. Seán Ó Domhnaill/Flickr

How did it get so late so soon? Why time flies as we get older

While few will dispute that a minute comprises 60 seconds, the perception of time can vary dramatically from person to person and from one situation to the next. Time can race, or it can drag.
Adjusting back to standard time is easy for most of us and can happen in one or two days. jamelah e./Flickr

Spring forward, fall back: how daylight saving affects our sleep

Daylight saving time ends this weekend in most states and territories (barring Queensland, Western Australia and the Northern Territory), meaning we’ll turn our clocks back by one hour on Sunday morning…
The way we measure time is out of date. Hani Amir

The hour’s final hour – it’s time for the decimal day

Australia gave up years ago on the prehistoric systems of gallons, miles and pounds. But like the rest of the world, we cling like apes to hours, minutes and seconds. What fundamental law of the universe…

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