Building a battleship from stockpiled components

How quickly could a Second World War battleship be completed if its components were prefabricated and the yard worked continuously?

Less than a year is suggested under the prompt's exceptional assumptions, with Dreadnought's preparation used as a comparison.

The scenario provides steel, armour, guns, transport and labour around the clock. Dreadnought's rapid construction illustrates the benefit of ordering long-lead machinery and weapons before keel laying. The hypothetical goes further by stockpiling hull sections as well. A dry dock would allow assembly without a separate slipway launch. The estimate concerns the assembly phase after extensive preparation and is not a complete measured keel-to-commissioning schedule including every trial and integration task.