What would be the purpose of 27/ fitting out the ship? Rapid outfitting will lead to mistakes. Is China on a war footing? Nope...China is on a great pace on building and outfitting this ship. I'm almost sure we shall see the ship at sea before the end of this year. Large warships require great patience in construction.
I think he's exaggerating. External outfitting probably isn't done during the night due to poor visibility which increases safety risks. Some internal outfitting might be done by graveyard shift workers since the internals aren't affected by daylight or lack thereof.