Who can tell me what day it is in the Antarctic circle and the Arctic circle?

The polar day and night will last for about half a year. The polar day in the Arctic (or the polar night in the Antarctic) begins at the vernal equinox (about 2 1 March) and ends at the autumnal equinox (about September 23rd), which lasts about 186 days. The polar night in the Arctic (or the polar day in the Antarctic) begins at the autumnal equinox and ends at the vernal equinox, and lasts about 179 days. The maximum dividing line between polar day and polar night is on the latitude line of 66 34'. The ideal conditions of these situations are: ① the sun is a point light source; (2) The sunlight goes straight ahead; The earth is a regular sphere. But this is not the case. (d) The sun is not a point light source, but a circular light source with an apparent radius of 16'; (2) Because the atmosphere refracts light, sunlight does not travel in a straight line when it passes through the earth's atmosphere. However, there is an angular deviation, which is the largest when the sun is close to the horizon (that is, the height of the sun is about 0), and the deviation angle is 34'; ③ The earth is not a regular sphere, but an approximate elliptical sphere with a polar radius of about 6357km and an equatorial radius of about 6378km. Source: Middle School Political History Geography Teaching Guidance Edition