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Year

The interval required for the earth to complete one revolution around the sun. A sidereal year, which is the time it takes for the earth to make one absolute revolution around the sun, is 365 days, 6 hours, 9 minutes and 9.5 seconds. The calendar year begins at 12 o'clock midnight local time on the night of December 31st-January 1st. Currently, the Gregorian calendar of 365 days is used, with 366 days every four years, a leap year. The tropical year, also called the mean solar year, is dependent on the seasons. It is the interval between two consecutive returns of the sun to the vernal equinox. In 1900, that took 365 days, 5 hours, 48 minutes, and 46 seconds, and it is decreasing at the rate of 0.53 second per century. This decrease is due to the slow precession of the Earth's axis of rotation.

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WA truckie's homegrown charity carrying $100,000 of hay across Nullarbor for drought-affected NSW farmers

06:27 EST

When Amanda Kendall's long-haul truck driver husband returned to Western Australia after one of his lengthy commutes home across the Nullarbor, he had formed a plan.

Darwin's dry season soaking

12:53 EST

Darwin received its heaviest rain in six months as a rare September shower passed over the city in the early hours of Tuesday morning.

Late-season chill grips southeastern Australia

09:24 EST

It feels like spring hasn't started in parts of southeastern Australia, with some places registering their lowest September temperatures in years during the last couple of mornings.