'Day' in the Bible

The Lord is good,a stronghold in a day of distress;He cares for those who take refuge in Him.

The shields of his warriors are dyed red;the valiant men are dressed in scarlet.The fittings of the chariot flash like fireon the day of its battle preparations,and the spears are brandished.

Your court officials are like the swarming locust,and your scribes like clouds of locusts,which settle on the walls on a cold day;when the sun rises, they take off,and no one knows where they are.