It is 120 s.m. S.m. stands for sol mortem, which in Latin means the death of the sun. The sun died yesterday, after the Red Giant stage came to a close. There is not enough light to live by, and the surface of the Earth is already frozen over. It took exactly seven hours and thirty-three minutes for it to freeze, and now we are stuck underground for all of eternity.
This would not be as bad, except for the fact that, without the light of the sun, plants can no longer photosynthesize. We have two of every plant on the Earth, as well as two of every animal. Not even the mosquitos were left behind, although some people believe that this was a mistake. The plants are being grown in a controlled environment where we keep them alive and photosynthesizing with fake sunlight. The oxygen is slowly running out, however, and until we can harvest energy from more effective sources, we will have to continue relying on the oxygen tanks that were filled