How long could people stay in space without a spacesuit?

People can typically survive in the vacuum of space for about 15 seconds before losing consciousness due to hypoxia, as the body is deprived of oxygen. After that, bodily functions would begin to fail, and irreversible damage could occur within a few minutes due to factors like decompression or exposure to extreme temperatures. However, death would likely occur within 1 to 2 minutes if no rescue is provided.