What is Autumn?
Autumn begins, by the astronomers’ calendar, on the September equinox, when day and night are again about the same length. From then on, in the northern hemisphere, the nights are longer than the days.
When is Autumn?
The September equinox falls on the 22nd or 23rd of September. The countdown is to that day, in the northern hemisphere; south of the equator it is the start of spring.
Ways to mark the day
- Pick apples or mushrooms, or go for a walk among the colored leaves.
- Cook a soup with what the season brings.
- Get the warm clothes out.
How the countdown works
The date is worked out for every year, so the clock always counts down to the next one. It counts on your own device’s time and reaches zero at midnight where you are. Full screen puts it on a classroom board or a big screen, and Your own event counts down to a date of your own instead.