As you can imagine, it’s not possible for everyone to experience the equal division of the day into light and darkness on the same day. That event only coincides with the equinox at the equator. For everyone else on the planet, it depends on where you are located.
If you would like to know when you will experience the balance of light and dark, have a look at www.sunrisesunset.com. You can enter your location and see which day has the sunrise and the sunset separated by 12 hours. That will be your Equilux.
(Did you see a green flash? Just before the sunset titles? The moment of sunset?)