Summer has come to a finish and winter is knocking at the door — autumn equinox is here.
The annual event, which marks the beginning of autumn will take place tonight, Wednesday 22 September.
After a hot September, Brits will begin to notice the temperature dropping as the first frosts arrive and the nights being to stretch out hours longer than before.
After tonight, the days will grow significantly shorter and the night will extend a noticeable amount.
Equinox happens twice a year and has already occurred once in 2021, during the spring equinox in March.
But what time is the autumn equinox this year and what does it mean?
What is the autumn equinox?
As the earth tilts on its axis, the sun shines on either the northern or hemisphere more.
An equinox occurs when the sun beams down on both the northern and southern hemispheres equally.
The name comes from the Latin aequus, meaning equal, and nox, meaning night.
Ancient peoples such as Druids and Pagans have celebrated the spring and autumn equinoxes for centuries, which is historically celebrated at Stonehenge in Wiltshire.
When is the autumn equinox?
The autumn equinox will take place tonight, Wednesday 22 September.
For those looking to mark the occasion on the exact second, it is predicted to take place at 8.21pm BST.
Sadly spring equinox is now a while off, and we'll have to wait until 20 March 2022 for the days to turn warmer.
