[CecilOne]

I agree with not calling time during a live ball, regardless of shall, will or can not. In this case, the ball was batted before the lights went out so the fielder must have seen it to catch it. That would mean not calling time, even if the ball was out of sight in the darkness because the batter hit it in the light. The problem is if the fielder missed it because of the darkness. Then you have allowed an injustice by not killing it.

A batted ball that crosses over a fence or dead ball line becomes dead in flight because it is unplayable and so should a ball that disappears in the darkness and is therefore unplayable. That means play stopped when the lights went out and the game is suspended like it would be for any ball batted out of play. Eventually, it might be decided by whatever game ending conditions or rules exist for that game.