'Heat of the Day' in the Bible

Now the Lord appeared to Abraham by the terebinth trees of Mamre [in Hebron], while he was sitting at the tent door in the heat of the day.

So the sons of Rimmon the Beerothite, Rechab and Baanah, left and came to the house of Ish-bosheth in the heat of the day while he was taking his midday rest.

saying, ‘These men who came last worked [only] one hour, and yet you have made them equal [in wages] to us who have carried [most of] the burden and [worked in] the scorching heat of the day.’