zero light thirty Share definition Flag Zero Light Thirty is military slang for 12:30 PM (or 12:30 HRS). Zero Light refers to 12 PM noon. we will be holding the meeting at zero light thirty. zero light thirty by Joeeeeeeeeee November 13, 2013 0 0 Get merch Get the zero light thirty mug. Buy Now — $32.95 See more merch
