The Chicago-based nonprofit announced today the decision to advance its Doomsday Clock closer to midnight by 30 seconds. The clock is now two minutes to midnight, the symbolic hour of imminent doom.

Analogue clocks only show 12 hour intervals ... This means that 14:30 is the same as 2.30 pm on a 12-hour clock. This is the same as saying it’s 15 minutes past 7 in the evening.

The Bulletin of the Atomic Scientists hold a news conference to announce that the Doomsday Clock has been reset to show three minutes until midnight, in Washington on Jan. 22, 2015. Cliff Owen/AP ...

A group of eminent scientists behind the "Doomsday Clock" has symbolically moved its time 30 seconds closer to midnight. The clock, a symbol created at the dawn of the Cold War in 1945 ...