When will the earths population reach 7 billion people?

Right now its December of 2019. This question was asked in 2011 back when we were hitting 7 billion people. The World did not end in 2012. We should use the years 2020 and 2021 to prepare for a more crowded world that is to comein 2022 and 2023 when there is 8 billion people on the world. Its possible that we wont reach 9 billion people. The world could end before then from some disaster like Plauge or asteroid collision. But to answer the question 8 billion people looks like its really going to happen some time in 2022.