Bible Dictionary
HIGH DAY
High day means broad daylight or the day at its height. In John 19:31 it refers especially to the Passover Sabbath, which had special sanctity.
Biblical Usage
In John 19:31, “high day” translates “great day” and refers to the Passover Sabbath, which had special sanctity. In Genesis 29:7, it denotes broad daylight or the height of the day.