Why do brooms stand by themselves during the equinox and why is it already starting it isn't the 21st yet?

The idea that brooms can stand by themselves during the equinox is a myth and part of a fun folklore that suggests that the gravitational pull during this time makes it easier for them to balance. This belief is more about the novelty of the equinox than a scientific fact. The equinox occurs when day and night are approximately equal in length, which happens around March 20 or 21. However, some people may start celebrating or engaging with the idea a bit earlier, leading to the perception that it's "already starting."