Night: Divided Into Four Watches by the Romans
Source: TTT
Luke 12:38
Even if he comes in the second or third watch of the night and finds them alert, those servants will be blessed.
Matthew 14:25
During the fourth watch of the night, Jesus went out to them, walking on the sea.
Mark 13:35
Therefore keep watch, because you do not know when the master of the house will return—whether in the evening, at midnight, when the rooster crows, or in the morning.