The actual day and night occurring 12 hours long or being equal occurs a few days after the autumnal equinox. Doesn't the "Celestial Equator" sound romantic? The Sun crosses the celestial equator going southward and rises exactly due east and sets exactly due west. The northern and southern hemispheres are equally illuminated. So much symmetry.
Wikipedia tells me that there are temporary disruptions of communications satellites. There are a few days around the equinox when the Sun goes directly behind satellites relative to Earth for a short period each day. The Sun's immense power and broad radiation spectrum overload Earth station reception circuits with noise and, depending on antenna size and other factors, temporarily disrupt or degrade the circuit. The duration of those effects varies but can range from a few minutes to an hour.
You can see articles on why your TV, radio and internet might be disrupted during an equinox. And then you can see articles on the Chevrolet Equinox, and on the company Equinox Gold - that company is really in the news.
The bridge to autumn - this is at Butchart Gardens in the Japanese Garden. We visited in 2019.
