doomsday clock
(redirected from Twelve minutes to midnight)Also found in: Medical.
doomsday clock
n
an image of a clockface representing the time remaining before the onset of a global catastrophe in terms of a number of minutes before midnight
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014