The Doomsday Clock is a symbolic clock face, representing a countdown to possible global catastrophe (e.g. nuclear war or climate change). It has been maintained since 1947. The closer they set the clock to midnight, the closer the scientists believe the world is to global disaster. Midnight is said to represent the point at which the Earth becomes uninhabitable by humanity. Read more ...

The clock was set at 90 seconds until midnight - the closest to the hour it has ever been   CNN - January 23, 2024

It's really strange that they didn't advance the clock in 2024 due to wars and climate.

Doomsday Clock signals highest ever peril level
  BBC - January 24, 2023

Doomsday Clock Warns We're Alarmingly Close to an Uninhabitable Earth  
Science Alert - November 16, 2023

December 2023 - Climate change and natural disasters are increasing exponentially across the world and there's no going back. War continues between Russia and Ukraine and Israel-Hamas - other conflicts on the horizon that many people feel will lead to World War III.