Charter schools usually are run by a board comprised of the teachers in the school and a few of the students' parents. The board makes its own decisions on-site. Unlike other public schools, a charter school does not have to seek approval from the school district or school board before it can take action.
because the earth is tilted on an axis, when its tilted away from the sun, they get no sunlight. In the Winter, the earth's north pole points away from the sun, so it is dark for 6 months. In the summer it points towards the sun, so it is bright for 6 months. The earth tilts back and forth on its axis.
For several weeks on either side of that date, the Sun might only set for an hour or two, and even then the sky never gets completely dark. On the winter solstice (December 21), there are no hours of daylight, since the Sun never rises at or above the Arctic circle on that date. For several weeks on either side of the winter solstice, the Sun will only be in the sky for an hour or two. Closer to the equinoxes (on or near March 21 and September 21), people living at the Arctic circle have 12 hours of daylight and 12 hours of darkness, just like everybody else on the planet.