Doomsday Clock 2023 Today. The doomsday clock is the metaphorical device used to gauge the existential threat of nuclear destruction as well as the threats of climate change and biotechnology. The clock has ticked minutes or seconds toward or away from catastrophe over the years.

Watch the 2023 doomsday clock announcement: The 2023 doomsday clock is moved to 90 seconds to midnight on january 24, 2023.