Chart
Three facts fix a sky: the day, the hour and the place. The more exact the hour, the more exact the houses.
Day, month and year.
As exact as you have it. Without a time, Astro can place the Sun, Moon and planets in their signs, but not the houses or the rising sign.
Town or city, and country. Coordinates and the time zone in force on that date are resolved once the calculation exists.
Nothing you enter here is sent or stored. This is a wireframe; the calculation behind the reading is still being built.