The 22nd of September is the equinox – the first day of autumn in the northern hemisphere, and the first day of spring in the south. The word "equinox" comes from Latin and means "equal night". All points on the Earth's surface experience 12 hours of daylight and 12 hours of darkness, apart from the north and south pole where it will be about to change from permanent light to dark, or vice versa. In the northern hemisphere, days will get shorter and nights will get longer until the winter solstice on 21 December.

From leaves turning red to the start of the deer rutting season, IBTimes UK presents photos of Britain as we leave summer behind and head into autumn.