'Heat of the Day' in the Bible

The LORD appeared to him by the oaks of Mamre, as he sat in the tent door in the heat of the day.

It was so on the next day, that Saul put the people in three companies; and they came into the midst of the camp in the morning watch, and struck the Ammonites until the heat of the day: and it happened, that those who remained were scattered, so that no two of them were left together.

The sons of Rimmon the Beerothite, Rechab and Baanah, went, and came about the heat of the day to the house of Ishbosheth, as he took his rest at noon.